{"title":"Ultima Parts","description":"\u003cp data-start=\"0\" data-end=\"235\"\u003eShop Kyosho Ultima parts and upgrades for repairs, maintenance and racing performance. Find drivetrain, suspension, steering, gears, axles, chassis components, hardware and replacement parts for popular Ultima models.\u003c\/p\u003e\n\u003cp data-start=\"237\" data-end=\"297\"\u003e \u003c\/p\u003e","products":[{"product_id":"kyosho-um125-idler-gear-shaft-ultima-rt5-rb6-sc-rt6-db-rb5","title":"Kyosho UM125 Idler Gear Shaft","description":"\u003cp\u003eThe Kyosho UM125 Idler Gear Shaft is a genuine factory replacement for the transmission in Kyosho's 1\/10 scale 2WD Ultima family. This small steel shaft supports the idler gear inside the gearbox, keeping the gear train aligned so power flows smoothly from the motor to the differential. Over time the shaft can wear or score from grit and hard running, which leads to gear noise and rough drivetrain feel, so swapping in a fresh shaft is a quick fix during a transmission rebuild.\u003c\/p\u003e\u003cp\u003eThis is a direct, drop-in replacement for the stock part with no modification required. It fits the Ultima RT5 and RT6 stadium trucks, the SC and SC-R short course trucks, the DB dirt buggy, and the RB5 and RB6 racing buggies that share the Ultima gearbox design. Package includes one idler gear shaft. Keep a spare in your pit box so a routine gearbox service never keeps your Ultima off the track.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547381743938,"sku":"KYOUM125","price":2.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum125_2.jpg?v=1713233549"},{"product_id":"kyosho-um129-4-8mm-short-ball-stud-4-lazer-zx-5-ultima-rt5-rb6-sc-rt6-db-rb5","title":"Kyosho UM129 4.8mm Short Ball Stud (4)","description":"\u003cp\u003eKyosho UM129 is a four-pack of genuine 4.8mm short ball studs for Kyosho's 1\/10 competition off-road platforms. These steel studs thread into suspension and steering components to create the pivot points for camber links and tie rods, letting the ball cups articulate smoothly through the full range of suspension travel. The short-neck design sits the linkage closer to the mounting surface for the geometry Kyosho specifies at several locations on these chassis.\u003c\/p\u003e\u003cp\u003eThey are direct factory replacements for bent, worn, or stripped studs. Worn balls create slop in the links, so fresh studs tighten up steering response and keep camber settings consistent lap after lap. Fitment covers the Ultima RB5, RB6, RB7, RT5, RT6, SC, and SC6 series buggies and trucks along with the Lazer ZX-5, ZX6, and ZX7 4WD buggies. Package includes four 4.8mm short ball studs, enough to service both rear camber links with spares left over.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547381973314,"sku":"KYOUM129","price":4.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum129_2.jpg?v=1713233551"},{"product_id":"kyosho-um519-type-b-rear-hub-set-off-4-7-2-ultima-rt5-rb6-sc-rt6-db-rb5","title":"Kyosho UM519 Type B Rear Hub Set (2)","description":"\u003cp\u003eThe Kyosho UM519 Type B Rear Hub Set is a genuine replacement hub carrier set for Kyosho's 1\/10 off-road lineup. These hubs hold the rear axle bearings and locate the rear suspension geometry with a 4.7mm offset, and the Type B design provides the camber link mounting positions Kyosho specifies for these chassis. Molded from durable composite plastic, they shrug off everyday racing knocks and are an inexpensive fix after a hard crash.\u003c\/p\u003e\u003cp\u003eThese hubs come standard on the Ultima RB5 SP, RT5, SC, SC-R, and DB, as well as the Lazer FS, so they install as direct replacements on those vehicles. They can also be fitted to the RB5 SP2 and Lazer FS2 as an option to open up additional camber link holes for tuning. The package includes two Type B rear hub carriers plus four plastic spacers, covering both rear corners of the truck or buggy in one pack.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547382464834,"sku":"KYOUM519","price":6.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum519.jpg?v=1713233552"},{"product_id":"kyosho-brg014-10x15x4mm-shielded-bearings-2-lazer-zx-5-ultima-rt5-sc-db-rb5","title":"Kyosho BRG014 10x15x4mm Shield Bearing (2)","description":"\u003cp\u003eKyosho BRG014 is a genuine pair of 10x15x4mm shielded ball bearings for Kyosho 1\/10 off-road vehicles. Each bearing uses a 10mm inner diameter, 15mm outer diameter, and 4mm width, with metal shields on both sides to keep dirt and dust out of the balls and races. Clean, free-spinning bearings mean less drivetrain drag, longer runtimes, and smoother power delivery, so refreshing them is one of the easiest ways to bring a used chassis back to life.\u003c\/p\u003e\u003cp\u003eThese are direct factory replacements for the same-size bearings used at transmission and hub positions on the Lazer ZX-5 4WD buggy and the Ultima RT5, SC, DB, and RB5 2WD family. They also work anywhere a standard 10x15x4mm bearing is called for on other Kyosho models. Package includes two shielded bearings. Replace them in pairs whenever you notice grinding or notchy rotation to keep the driveline spinning freely.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547383021890,"sku":"KYOBRG014","price":11.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyobrg014.jpg?v=1713233554"},{"product_id":"kyosho-1-e025-2-5mm-e-clip-10-ultima-lazer-inferno-tf-5-tf-5s-fazer","title":"Kyosho 1-E025 E-Ring E2.5 (10)","description":"\u003cp\u003eKyosho 1-E025 is a ten-pack of genuine E2.5 e-rings, the small steel retaining clips used throughout Kyosho kits to secure hinge pins, shafts, and other 2.5mm hardware. Each clip snaps into a machined groove and locks the pin in place while still allowing free rotation, which is why e-rings appear at so many suspension and drivetrain locations on Kyosho vehicles. These have a 2.5mm inner diameter and roughly 6mm outer diameter and are stamped from steel for a secure hold.\u003c\/p\u003e\u003cp\u003eThis is a direct replacement for the e-clips supplied in Kyosho kits and supersedes the older part number 1382. Fitment is general purpose across the Kyosho range, including the Ultima and Lazer buggy families, the Inferno 1\/8 platforms, Optima, Fazer, TF-5, and FW-06 series, or any model calling for an E2.5 clip. E-rings are easy to lose during rebuilds, so this ten-piece pack keeps your pit box stocked.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547383251266,"sku":"KYO1-E025","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyo1-e025_2.jpg?v=1718253164"},{"product_id":"kyosho-1-s13025h-3x25mm-button-head-hex-screw-5-ultima-lazer","title":"Kyosho 1-S13025H 3x25mm Button Hex Screw (5)","description":"\u003cp\u003eKyosho 1-S13025H is a five-pack of genuine M3x25mm button head hex screws. These steel screws use a low-profile button head with a hex socket drive, which resists stripping far better than Phillips hardware and lets you apply proper torque with a quality driver. At 25mm long, this size is specified as transmission screws on several Kyosho 1\/10 off-road models, holding the gearbox case together where solid clamping force matters.\u003c\/p\u003e\u003cp\u003eThis is a direct factory replacement for the kit-supplied hardware and supersedes Kyosho's older 1395 screw pack. Applications include the Ultima RB5 and RB5 SP, RT5, SC, SC-R, and DB, along with other Kyosho vehicles that call for M3x25 button head screws. Package includes five screws. Kyosho hardware is sized exactly to the chassis, so keeping factory screw packs on hand makes gearbox rebuilds and general wrenching quicker and keeps mismatched hardware out of your ride.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547383382338,"sku":"KYO1-S13025H","price":4.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyo1-s13025h_2.jpg?v=1718213438"},{"product_id":"kyosho-la207-slipper-spring-zx-5-ultima-rt5-sc-db-rb5-lazer-zx-5","title":"Kyosho LA207 Slipper Spring ZX-5","description":"\u003cp\u003eThe Kyosho LA207 Slipper Spring is a genuine replacement tension spring for the slipper clutch on Kyosho 1\/10 off-road vehicles. Sitting behind the slipper nut, this coil spring applies the clamping pressure that holds the slipper plates against the spur gear, and adjusting preload on it is how you fine-tune slip. A correctly tensioned slipper protects the transmission from shock loads on hard landings and helps put power down smoothly in loose conditions.\u003c\/p\u003e\u003cp\u003eSprings fatigue over time as they cycle and compress, and a tired spring makes slipper settings drift so the clutch slips more than it should. Installing a fresh factory spring restores consistent, repeatable slipper action. This is a direct replacement for the Lazer ZX-5 series through the ZX7, and it also fits the Ultima RT5, SC, DB, and RB5 models that share the same slipper design. Package includes one slipper spring, a cheap insurance part every Kyosho racer should keep on hand.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547385151810,"sku":"KYOLA207","price":3.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyola207_2.jpg?v=1713233562"},{"product_id":"kyosho-97008-52-3x52mm-adjustable-rods-2-ultima-rt5-sc-rt6-db","title":"Kyosho 97008-52 Adjust Rod 3x52mm (2)","description":"\u003cp\u003eKyosho 97008-52 is a genuine pair of 3x52mm adjustable rods. These steel turnbuckle-style links thread into ball cups at each end, letting you dial in link length precisely without disassembling the linkage. A few turns changes camber or toe settings right on the pit table. The 3mm thread diameter and 52mm length match the linkage positions Kyosho specifies on several 1\/10 off-road models.\u003c\/p\u003e\u003cp\u003eThey install as direct replacements for the kit rods on the Ultima RT5 and RT6 stadium trucks, the SC short course truck, and the DB dirt buggy, and they work anywhere a 3x52mm adjustable rod is called for on other Kyosho vehicles. Bent links from crashes throw off suspension geometry and make the vehicle pull or wear tires unevenly, so replacing damaged rods keeps handling sharp and settings accurate. Package includes two adjustable rods, enough to service a matched pair of camber or steering links in one go.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547386069314,"sku":"KYO97008-52","price":9.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyo97008-52.jpg?v=1718249893"},{"product_id":"kyosho-w5193-01-50mm-rear-shock-shaft-2-ultima-rt5-rt6-sc-db-rb5-lazer-zx-5","title":"Kyosho W5193-01 50mm Shock Shaft (2)","description":"\u003cp\u003eKyosho W5193-01 is a genuine pair of 50mm shock shafts for Kyosho 1\/10 off-road dampers. These polished steel shafts run through the shock body and seals, so a smooth, unmarred surface is critical for consistent damping. A nicked or bent shaft chews up seals, leaks oil, and makes the suspension feel harsh, and swapping in fresh factory shafts during a shock rebuild restores plush, consistent action.\u003c\/p\u003e\u003cp\u003eAt 50mm long these are the shorter rear shafts specified for the SP-spec cars: they come standard in the Lazer ZX-5 SP and FS kits and the Ultima RB5 SP, and they are shorter than the shafts used on the standard Lazer ZX-5. They are also listed as spares for the later RB7 and Lazer ZX7 platforms that use the same 50mm shaft. This is a direct replacement for the kit part with no modification needed. Package includes two shock shafts, covering both rear dampers.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547386200386,"sku":"KYOW5193-01","price":5.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow5193-01.jpg?v=1713233564"},{"product_id":"kyosho-w5199-65-55mm-front-shock-spring-65-2-ultima-rt5-sc-db","title":"Kyosho W5199-65 Front Spring #65 55mm (2)","description":"\u003cp\u003eKyosho W5199-65 is a genuine pair of front shock springs for Kyosho 1\/10 off-road vehicles. These are #65-rate coils at 55mm free length, sized for the front dampers on Kyosho's 2WD truck and buggy platforms. Spring rate is one of the most effective tuning tools on an off-road chassis: a #65 front spring falls on the softer side of Kyosho's range, helping the front end stay planted and generate steering grip on low-traction or bumpy surfaces.\u003c\/p\u003e\u003cp\u003eThese springs install as direct replacements for the kit front springs on the Ultima RT5, SC, and DB, and they fit other Kyosho models that use the 55mm front spring size. Because they follow Kyosho's factory rate numbering, they slot straight into your setup sheet alongside the rest of the W5199 spring series when you are testing different rates. Package includes two matched springs, one for each front shock, so both corners stay balanced.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547386265922,"sku":"KYOW5199-65","price":6.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow5199-65.jpg?v=1713233572"},{"product_id":"kyosho-w5199-75-55mm-front-shock-spring-75-2-ultima-rt5-sc-db","title":"Kyosho W5199-75 55mm Front Spring #75 Ultima RT5","description":"\u003cp\u003eThe W5199-75 is a pair of front suspension springs for Kyosho's Ultima 2WD platforms, rated #75 with a 55mm free length. Spring rate is one of the fastest ways to change how a buggy or short course truck behaves on corner entry and exit, and this #75 rating sits at the firmer end of the W5199 front series.\u003c\/p\u003e\u003cp\u003eA stiffer front spring reduces nose dive under braking, keeps the chassis flatter through the middle of a corner, and helps the front end stay predictable on high-grip clay and groomed indoor tracks. Softer rates in the same series suit rough or low-traction surfaces where you want the front tires to load up and find bite.\u003c\/p\u003e\u003cp\u003eFitment covers the Ultima RT5 stadium truck, the Ultima SC and SC-R short course trucks, and the Ultima DB. Two springs are included, enough to do both front shocks in one pack. These are wound to the same dimensions as the springs supplied in the kit, so they drop straight onto the stock front shock bodies with no other parts required. This is a tuning change, not a modification.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547386331458,"sku":"KYOW5199-75","price":6.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow5199-75.jpg?v=1713233566"},{"product_id":"kyosho-org045s-p4-5-silicone-o-ring-orange-15-ultima-rt6-sc-db-rb6","title":"Kyosho ORG045S Silicone O-Ring P4.5 Slim (15)","description":"\u003cp\u003eKyosho ORG045S is a fifteen-pack of genuine P4.5 slim-profile silicone o-rings. These small seals are specified for the gear differentials on Kyosho's 1\/10 off-road vehicles, where they seal the outdrives against the diff case so the silicone fluid inside stays put. A healthy set of o-rings keeps diff action consistent; once they wear or flatten, fluid weeps out, the diff gets loose and inconsistent, and handling suffers. Because silicone stays flexible and resists the diff fluids they live in, these seals hold up well between rebuilds.\u003c\/p\u003e\u003cp\u003eThe slim P4.5 profile is the exact size Kyosho calls for in the sealed gear diffs used on the Ultima SC and DB, and the same size services other Kyosho gear differentials that spec a P4.5 ring. They install as direct replacements during a routine diff rebuild with no modification needed. With fifteen o-rings in the pack, one purchase covers several full diff services, so you can refresh the seals every time you change diff fluid.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547386429762,"sku":"KYOORG045S","price":4.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoorg045s.jpg?v=1713233568"},{"product_id":"kyosho-w5198-02-58mm-shock-shaft-2-ultima-rt5-sc-db-rb5","title":"Kyosho W5198-02 58mm Shock Shaft (2)","description":"\u003cp\u003eKyosho W5198-02 is a genuine pair of 58mm shock shafts for Kyosho's Triple Cap dampers on 1\/10 off-road vehicles. These polished steel shafts ride through the shock seals and cartridge, so surface finish directly affects how the suspension feels. A bent or pitted shaft tears up seals, weeps oil, and adds stiction, while fresh factory shafts restore smooth, consistent damping after a rebuild or a hard crash.\u003c\/p\u003e\u003cp\u003eThe 58mm length is the rear shock shaft size specified for Kyosho's 2WD off-road family, installing as a direct replacement on the Ultima RT5, SC, DB, and RB5, and matching later RT6 and SC6 applications that use the same 58mm rear shaft. No modification is needed; simply swap them in during your next shock service along with fresh oil and seals. Package includes two shock shafts, enough to service both rear dampers at once so the truck stays balanced side to side.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547386790210,"sku":"KYOW5198-02","price":6.8,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow5198-02.jpg?v=1713233572"},{"product_id":"kyosho-um610-differential-bevel-gear-set-ultima-rt6-sc-db-rb6","title":"Kyosho UM610 Diff Bevel Gear Set","description":"\u003cp\u003eThe Kyosho UM610 Diff Bevel Gear Set is the complete genuine bevel gear set for the sealed gear differential used on Kyosho's 1\/10 off-road platforms. These steel bevel gears form the heart of the diff, transferring power to both rear wheels while letting them rotate at different speeds through corners. Compared with a ball differential, the gear diff design is stronger and more durable, holds its action longer between services, and handles modern brushless power without the constant rebuilds ball diffs demand.\u003c\/p\u003e\u003cp\u003eThis set installs as a direct replacement for the internals of the Ultima gear differential, with fitment covering the Ultima SC, SC6, RT6, DB, RB6, and RB6.6. It is also the gear set used when converting an RB5 or RB6 ball diff to a gear diff alongside the matching diff gear set. If your diff has developed gritty or notchy action from worn gears, this set brings it back to smooth, quiet operation.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547386888514,"sku":"KYOUM610","price":6.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum610.jpg?v=1713233569"},{"product_id":"kyosho-um611-differential-case-packing-set-2-ultima-rt6-sc-db-rb6","title":"Kyosho UM611 Diff Case Packing Set (2)","description":"\u003cp\u003eKyosho UM611 is a genuine pair of differential case packing gaskets for the sealed gear diffs on Kyosho's 1\/10 off-road vehicles. This thin gasket sits between the two halves of the diff case and does one critical job: keeping the silicone diff fluid sealed inside. Every time you split the case to change fluid or inspect the gears, the packing takes a set, and reusing a compressed gasket is the most common cause of a leaky diff. A leaking diff loses fluid, changes action mid-run, and makes your setup inconsistent.\u003c\/p\u003e\u003cp\u003eThese are direct factory replacements for the gasket supplied in the Ultima gear diff, fitting the Ultima SC, SC6, RT6, DB, RB6, and RB6.6, plus the Lazer ZX6.6 diffs built on the same case. The package includes two gaskets, so one pack covers two diff services. Smart practice is to drop a fresh packing in every time the case comes apart, and at this price there is no reason not to.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547387216194,"sku":"KYOUM611","price":3.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum611.jpg?v=1713233573"},{"product_id":"kyosho-um612-gear-differential-outdrive-cup-set-2-ultima-rt6-sc-db-rb6","title":"Kyosho UM612 Diff Shaft Ultima SC (2)","description":"\u003cp\u003eKyosho UM612 is a genuine pair of differential shafts, also known as outdrive joint cups, for the sealed gear differential on Kyosho's 1\/10 off-road vehicles. These steel cups bolt into each side of the diff and are the connection point between the differential and the driveshafts: the drive pins ride inside the cups and transfer all the power from the diff out to the wheels. Because every bit of torque passes through them, the cups gradually wear grooves where the pins run, and worn outdrives create driveline slop and can eventually let a driveshaft pop out under load.\u003c\/p\u003e\u003cp\u003eThese install as direct replacements in the Ultima gear diff, with fitment covering the Ultima SC, RT6, DB, and RB6 vehicles that use this differential design. Swapping in a fresh pair during a diff rebuild tightens up the whole driveline and restores crisp throttle response. Package includes two diff shafts, one for each side of the differential.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547387281730,"sku":"KYOUM612","price":7.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum612.jpg?v=1713233571"},{"product_id":"kyosho-um613-differential-bevel-shaft-set-2-ultima-rt6-sc-db-rb6","title":"Kyosho UM613 Diff Bevel Shaft (2)","description":"\u003cp\u003eKyosho UM613 is a genuine pair of differential bevel shafts for the sealed gear diff on Kyosho's 1\/10 off-road vehicles. These are the steel cross pins that mount the internal bevel gears inside the differential case, holding the spider gears in position while they rotate under load. The pins take constant stress every time the diff works through a corner or absorbs a landing, and over time they can wear, groove, or bend, which introduces play into the diff and accelerates gear wear.\u003c\/p\u003e\u003cp\u003eInstalling fresh cross pins during a diff rebuild is cheap insurance that keeps the gear mesh true and the diff action smooth. These are direct factory replacements for the pins in the Ultima gear differential, with fitment covering the Ultima SC, RT6, DB, and RB6, and the same pins service other Kyosho diffs built on this design, including V-One R4 and Lazer ZX7 applications. Package includes two bevel shafts, a complete set for one differential.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547387347266,"sku":"KYOUM613","price":4.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum613.jpg?v=1713233571"},{"product_id":"kyosho-w5184-02-cartridge-bushing-4-ultima-rt5-rt6-rb5-rb6-sc-lazer-zx-5","title":"Kyosho W5184-02 Shock Cartridge Bushing Set","description":"\u003cp\u003eKyosho W5184-02 is a genuine set of shock cartridge bushings for the Triple Cap dampers used on Kyosho's 1\/10 off-road vehicles. These small plastic bushings live in the lower shock cartridge, where they do two jobs at once: they keep the shock shaft aligned as it strokes through the body, and they retain the shock seals that keep oil in and dirt out. Worn bushings let the shaft wobble, which chews through seals, weeps oil, and makes damping inconsistent from corner to corner.\u003c\/p\u003e\u003cp\u003eReplacing the cartridge bushings during a routine shock rebuild restores a snug shaft fit and consistent, leak-free performance. These are direct factory replacements for the Triple Cap shock cartridges on the Lazer ZX-5, Ultima RT5, RT6, RB5, RB6, and SC, and they also service the later RB7 and ZX7 shocks that share the design. This pack includes enough bushings to service the cartridges on a pair of shocks.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547387642178,"sku":"KYOW5184-02","price":4.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow5184-02.jpg?v=1713233572"},{"product_id":"kyosho-umh601s-ultima-sc-silver-wheel-set-2-ultima-sc-db","title":"Kyosho UMH601S Ultima SC Silver Wheel Set (2)","description":"\u003cp\u003eThe Kyosho UMH601S wheel set is a genuine pair of replacement wheels for Kyosho's 1\/10 scale 2WD short course platform. These one-piece wheels are molded to the exact offset and bead dimensions Kyosho designed for the Ultima SC family, so tires mount and seat properly and the truck tracks the way the factory intended. Molded from durable plastic, they take curb strikes, cartwheels, and short course rubbing without giving up.\u003c\/p\u003e\u003cp\u003eThese are direct factory replacements for the kit wheels on the Ultima SC and SC-R, and the same wheel fitment carries to the SC6 and the Ultima DB dirt buggy that share this wheel design. Whether you are replacing a cracked rim after a hard hit or building a second set of pre-glued race tires, factory wheels are the safest way to keep fitment exact. Package includes two wheels; pair them with Kyosho's matching Ultima SC tire set for a complete bolt-on corner.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547388199234,"sku":"KYOUMH601S","price":12.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoumh601s.jpg?v=1713233573"},{"product_id":"kyosho-um510-02-wheel-shaft-ultima-rb5-rb6-sc-lazer-zx-5","title":"Kyosho UM510-02 Wheel Shaft (1)","description":"\u003cp\u003eKyosho UM510-02 is a genuine replacement wheel shaft for the universal driveshaft sets used on Kyosho's 1\/10 off-road buggies. This is the outer axle portion of the universal joint assembly: the stub shaft that passes through the rear hub bearings and carries the wheel. The package includes the axle itself along with the coupler, wheel pin, and set screw needed to rebuild the joint, and the shaft carries the three-line marking that identifies it as the long axle.\u003c\/p\u003e\u003cp\u003eIt serves as the direct service part for the UM510 and UMW601 universal swing shaft sets, which means you can repair a damaged universal instead of replacing the entire assembly. Fitment covers the Ultima RB5, RB6, and SC along with the Lazer ZX-5, wherever those universal sets are installed. Axles take real abuse from cartwheels and hub strikes, so keeping a spare wheel shaft on hand can save a race day. Package includes one complete wheel shaft with hardware.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547388395842,"sku":"KYOUM510-02","price":13.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum510-02.jpg?v=1713233573"},{"product_id":"kyosho-law32-sp-suspension-bushing-8-ultima-rt5-rb5-rb6-sc-db-lazer-zx-5","title":"Kyosho LAW32 SP Suspension Bush (8)","description":"\u003cp\u003eKyosho LAW32 is an eight-pack of genuine SP suspension bushings molded from POM, a low-friction engineering plastic. These small bushings ride on the suspension hinge pins where the arms pivot on the chassis and bulkheads, giving the suspension a smooth, consistent swing without the slop that develops as stock bushings wear. Because POM is self-lubricating and wear-resistant, these bushings keep arm movement free even in dusty, gritty off-road conditions.\u003c\/p\u003e\u003cp\u003eOriginally specified for the Lazer ZX-5, this bushing set serves as a direct replacement and popular option part across Kyosho's 1\/10 off-road range, including the Ultima RT5, RB5, RB6, SC, and DB, the SB Dirt Master, and even the TF-5 touring platform where Kyosho lists it as an upgrade. Sticky or worn suspension pivots rob traction and make handling inconsistent, so refreshing the bushings is a cheap way to bring back a plush, free-moving suspension. Package includes eight bushings, enough to service multiple pivot points in one go.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547388494146,"sku":"KYOLAW32","price":5.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyolaw32_2.jpg?v=1713233574"},{"product_id":"kyosho-vzw417-steel-differential-bevel-gear","title":"Kyosho VZW417 Steel Diff Bevel Gear (2)","description":"\u003cp\u003eKyosho VZW417 is a genuine pair of large 26-tooth steel side bevel gears for Kyosho gear differentials. These are the two big output gears that sit at either end of the diff and drive the outdrives, and in this optional steel form they are machined from high-strength steel rather than the standard material. That extra strength matters most under modern brushless power and aggressive driving, where standard gears can wear or strip teeth over time. Steel gears run smoother for longer, hold their mesh with the internal spider gears, and dramatically extend the service life of the differential.\u003c\/p\u003e\u003cp\u003eThese install as direct upgrades inside the gear diffs used on the V-One R4 touring car and the Ultima SC and DB off-road vehicles, dropping in place of the standard large bevels during a routine diff rebuild. Pair them with Kyosho's matching small steel bevel gears to build a full-steel differential. Package includes two 26T side bevel gears.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547388625218,"sku":"KYOVZW417","price":28.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyovzw417.jpg?v=1713233574"},{"product_id":"kyosho-w0142gm-3x6x2mm-aluminum-collar-washer-6-ultima-rb6","title":"Kyosho W0142GM Aluminum Collar 3x6x2mm (6)","description":"\u003cp\u003eKyosho W0142GM is a six-pack of genuine aluminum collars measuring 3mm inner diameter, 6mm outer diameter, and 2mm thick. These anodized aluminum spacers are precision-machined to exact thickness, which makes them far more consistent than stacking generic washers when you need to shim a component accurately. On a race chassis they earn their keep at dozens of spots: spacing ball studs to tune link geometry, shimming suspension mounts, setting bearing preload, and dressing up screw heads anywhere a 3mm fastener passes through.\u003c\/p\u003e\u003cp\u003eKyosho classifies these as a general-purpose option part, so they work across the full Kyosho lineup and any other brand using metric 3mm hardware, with the Ultima RB6 and SC6 among the models they are commonly listed with. Aluminum keeps the added weight negligible while resisting crush better than plastic spacers, so your settings stay put. Package includes six collars in the 3x6x2mm size, a handy addition to any parts drawer.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547393540418,"sku":"KYOW0142GM","price":6.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow0142gm.jpg?v=1713233545"},{"product_id":"kyosho-um517gm-motor-plate-ultima-rt5-rt6-rb5-rb6-sc-db","title":"Kyosho UM517GM Ultima Motor Plate","description":"\u003cp\u003eThe Kyosho UM517GM Motor Plate is a genuine aluminum motor mounting plate for Kyosho's 1\/10 scale 2WD Ultima family. The motor plate is a critical structural part: it carries the motor, holds it in precise alignment with the transmission, and acts as a heat sink pulling temperature out of the motor can during long runs. A flat, true plate keeps gear mesh accurate between the pinion and spur, which protects the drivetrain and keeps power delivery efficient.\u003c\/p\u003e\u003cp\u003eThis anodized aluminum plate is the standard replacement for the Ultima RB5 SP2 WC and serves as the direct service and option part for the RB5, RT5, SC-R, and DB series, superseding the earlier UM517 part number. If your plate has been gouged by a thrown pinion, warped from a crash, or stripped at the mounting holes, a fresh factory plate restores exact motor alignment. Package includes one motor plate.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547393671490,"sku":"KYOUM517GM","price":9.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum517gm.jpg?v=1713233549"},{"product_id":"kyosho-xgs152-drive-joint-grease-3g-ultima-rt6-rb6","title":"Kyosho XGS152 Drive Joint Grease 3g","description":"\u003cp\u003eKyosho XGS152 Drive Joint Grease is a genuine 3-gram tube of multi-purpose grease formulated for the fast-moving metal-on-metal contact points in an RC drivetrain. Kyosho specifies this grease for the thrust bearing in the Ultima RB6 kit, and it is equally at home on drive joints, outdrive cups, universal joints, and other high-speed wear surfaces. Unlike household greases that dry out and stiffen, this formulation stays in place and keeps its consistency, reducing friction and preventing the wear that grinds metal parts down over time.\u003c\/p\u003e\u003cp\u003eA dab on the thrust bearing during a diff rebuild keeps the balls rolling smoothly under load, and a light coat inside outdrive cups quiets the driveline and extends pin and cup life. It works with any Kyosho vehicle and any other brand in your fleet, making it a standard item for the pit box. Package includes one 3g tube, which goes a long way since only small amounts are needed at each point.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547393737026,"sku":"KYOXGS152","price":12.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoxgs152.jpg?v=1713233548"},{"product_id":"kyosho-xgs035-big-bore-rear-shock-spring-set-white-md-soft-2-ultima-rt5-sc-db","title":"Kyosho XGS035 Big Bore Rear Spring M-Soft (2)","description":"\u003cp\u003eKyosho XGS035 is a genuine pair of medium-soft rate rear shock springs for Kyosho's big bore dampers. These are the long LL-size springs at roughly 46mm, produced for Kyosho's X-Gear spring program with consistent, matched rates so both rear corners behave identically. Spring rate is one of the most powerful tuning tools on an off-road chassis: a medium-soft rear spring increases rear traction and chassis roll, helping the truck hook up and stay composed on low-grip and bumpy surfaces.\u003c\/p\u003e\u003cp\u003eThese springs are intended for the Kyosho Ultima RT5, SC, and DB vehicles equipped with the W5305V big bore shock set, where they install as a direct fit tuning option over the kit springs. They also slot into the broader XGS spring lineup, so you can test rates back to back and log what works on your local track. Package includes two matched rear springs, one for each rear shock.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547393933634,"sku":"KYOXGS035","price":17.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoxgs035.jpg?v=1713233550"},{"product_id":"kyosho-xgs025-big-bore-front-shock-springs-white-md-soft-2-ultima-rt5-sc-db","title":"Kyosho XGS025 Big Bore Front Spring M-Soft (2)","description":"\u003cp\u003eKyosho XGS025 is a genuine pair of medium-soft rate front shock springs for Kyosho's big bore dampers. These springs measure roughly 38mm and come from Kyosho's X-Gear spring program, which produces matched, consistent rates so both front corners load evenly. On the front of an off-road truck, a medium-soft spring lets the nose settle into the track surface, generating steering grip and keeping the front tires biting through bumpy or low-traction sections instead of skipping across them.\u003c\/p\u003e\u003cp\u003eThey are intended for the Kyosho Ultima RT5, SC, and DB vehicles running big bore front shocks, where they install as a direct-fit tuning option in place of the kit springs. Because they follow Kyosho's rate system, they pair naturally with the rest of the XGS spring range when you are working through setup changes between practice rounds. Package includes two matched front springs, so both front dampers stay identical side to side.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547394130242,"sku":"KYOXGS025","price":16.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoxgs025.jpg?v=1713233551"},{"product_id":"kyosho-w0145gm-3x7x1mm-aluminum-collar-washer-6-ultima-rb5-rb6-sc-lazer-zx-5","title":"Kyosho W0145GM Aluminum Collar 3x7x1mm (6)","description":"\u003cp\u003eKyosho W0145GM is a six-pack of genuine aluminum collars measuring 3mm inner diameter, 7mm outer diameter, and 1mm thick. These anodized aluminum spacers are machined to precise thickness, making them the clean way to fine-tune spacing anywhere a 3mm screw or stud passes through the chassis. At 1mm thick, this size is ideal for subtle adjustments: shimming ball studs to tweak camber link angle, spacing servo horns, setting small gaps at suspension mounts, or dressing screw heads with a finished look.\u003c\/p\u003e\u003cp\u003eKyosho lists these as general-purpose hardware, and they see common use across the Ultima RB5, RB6, and SC along with the Lazer ZX-5, while working equally well on any vehicle that uses metric 3mm hardware. Aluminum resists crushing far better than plastic spacers, so once you set a measurement it stays set run after run. Package includes six collars in the 3x7x1mm size, an easy add to keep your hardware drawer complete.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547394228546,"sku":"KYOW0145GM","price":6.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow0145gm.jpg?v=1713233551"},{"product_id":"kyosho-w0144gm-3x7x2mm-aluminum-collar-washer-6-ultima-rb5-rb6-sc-lazer-zx-5","title":"Kyosho W0144GM Aluminum Collar 3x7x2mm (6)","description":"\u003cp\u003eKyosho W0144GM is a six-pack of genuine aluminum collars measuring 3mm inner diameter, 7mm outer diameter, and 2mm thick. These anodized aluminum washers are machined to exact thickness, which makes them more accurate and more durable than generic stamped washers when spacing components on a race chassis. The 2mm thickness is a workhorse size for shimming ball studs to change link geometry, spacing suspension mounts, taking up play on 3mm shafts, and finishing screw heads cleanly anywhere on the vehicle.\u003c\/p\u003e\u003cp\u003eKyosho lists these as general-purpose hardware, commonly used on the Ultima RB5, RB6, and SC as well as the Lazer ZX-5, and they fit any RC vehicle built around metric 3mm hardware regardless of brand. Because aluminum will not compress or deform like plastic spacers, whatever geometry you set with them holds through crashes and long run days. Package includes six collars in the 3x7x2mm size, and they pair well with the other thicknesses in Kyosho's collar range.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547394261314,"sku":"KYOW0144GM","price":6.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow0144gm_1.jpg?v=1713233545"},{"product_id":"kyosho-xgs021-big-bore-shock-spring-set-red-medium-hard-ultima-rt5-rt6-sc-db","title":"Kyosho XGS021 Big Bore Front Spring M-Hard (2)","description":"\u003cp\u003eKyosho XGS021 is a genuine pair of medium-hard rate shock springs for Kyosho's big bore dampers. These are the M-length springs from Kyosho's X-Gear program, wound and sorted so both springs in the pack carry matched rates and load each corner identically. Spring rate is the most direct handling adjustment on an off-road chassis: a medium-hard front spring reduces chassis roll and sharpens steering response, which pays off on high-grip tracks and smoother surfaces where a softer spring lets the front end wallow.\u003c\/p\u003e\u003cp\u003eThey install as a direct-fit tuning option on the front of the Kyosho Ultima RT5, RT6, SC, SC6, and DB when those vehicles are running big bore shocks, dropping in place of the kit springs with no modification. Because they follow Kyosho's rate numbering, they slot cleanly into your setup sheet alongside the softer and harder springs in the XGS range when you are testing back to back between rounds. Package includes two matched springs, one for each front shock.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547394490690,"sku":"KYOXGS021","price":16.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoxgs021.jpg?v=1713233546"},{"product_id":"kyosho-um124-tensioner-spring-ultima-rt5-rb5-rb6-sc-db-lazer-zx-5","title":"Kyosho UM124 Tension Spring","description":"\u003cp\u003eThe Kyosho UM124 Tension Spring is a genuine replacement spring for the transmission side of Kyosho's 1\/10 scale off-road platforms. This small coil spring applies steady tension in the drivetrain assembly, keeping the gear train loaded correctly so the mesh stays consistent as the chassis flexes and the suspension works. Springs like this fatigue slowly and quietly over many run packs, and once the tension drops off you start to hear gear noise and feel inconsistency in the drivetrain that is easy to blame on other parts.\u003c\/p\u003e\u003cp\u003eThis is a direct factory replacement for the kit spring, requiring no modification to install. Kyosho lists it across the Ultima 1\/10 range, covering the RT5, RB5, RB6, SC, and DB, and the same spring is called out in the Lazer ZX-5 parts list. At this price it makes sense to drop a fresh one in any time the gearbox is apart for a rebuild rather than reusing a spring that has been cycling for a season. Package includes one tension spring.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547394654530,"sku":"KYOUM124","price":3.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum124.jpg?v=1713233547"},{"product_id":"kyosho-xgs032-big-bore-rear-shock-spring-yellow-hard-2-ultima-rt5-sc-db","title":"Kyosho XGS032 Big Bore Rear Spring Hard (2)","description":"\u003cp\u003eKyosho XGS032 is a genuine pair of hard rate rear shock springs for Kyosho's big bore dampers. These are the long LL-size springs produced through Kyosho's X-Gear program, which sorts springs for consistent rates so both rear corners compress and rebound identically. A hard rear spring is the setup choice for high-bite tracks and smooth surfaces: it cuts chassis roll, keeps the rear from squatting under hard acceleration, and makes the truck feel more responsive and direct through transitions.\u003c\/p\u003e\u003cp\u003eThese are intended for the Kyosho Ultima RT5, SC, and DB running big bore rear shocks, where they install as a direct-fit tuning option in place of the kit springs. They sit at the stiff end of the LL spring range, so they pair naturally with the softer rates in the same series when you are working through a setup sheet and logging what each change does on your local dirt. Package includes two matched rear springs, keeping both rear dampers identical.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547394982210,"sku":"KYOXGS032","price":16.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoxgs032.jpg?v=1713233546"},{"product_id":"kyosho-xgs031-big-bore-rear-shock-spring-set-red-md-hard-2-ultima-rt5-sc-db","title":"Kyosho XGS031 Big Bore Rear Spring M-Hard (2)","description":"\u003cp\u003eKyosho XGS031 is a genuine pair of medium-hard rate rear shock springs for Kyosho's big bore dampers. These LL-size springs come from Kyosho's X-Gear program, where springs are wound and matched for consistent rates so the left and right rear corners behave the same way lap after lap. Medium-hard sits one step up from the medium-soft rate, reducing rear chassis roll and increasing responsiveness without going all the way to the stiff end, which makes it a common baseline rate on medium to high-grip tracks.\u003c\/p\u003e\u003cp\u003eThey install as a direct-fit tuning option on the Kyosho Ultima RT5, SC, and DB when fitted with big bore rear shocks, replacing the kit springs with no modification. Since they follow Kyosho's published rate system, they work directly alongside the rest of the XGS lineup so you can move a step softer or stiffer and know exactly what changed. Package includes two matched rear springs, one for each rear damper.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547395047746,"sku":"KYOXGS031","price":17.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoxgs031.jpg?v=1713233549"},{"product_id":"kyosho-xgs022-big-bore-front-shock-spring-set-yellow-hard-2-ultima-rt5-sc-db","title":"Kyosho XGS022 Big Bore Front Spring Hard (2)","description":"\u003cp\u003eKyosho XGS022 is a genuine pair of hard rate front shock springs for Kyosho's big bore dampers. These M-length springs are produced through Kyosho's X-Gear program, which sorts for consistent rates so both front corners load evenly and steering stays predictable. A hard front spring keeps the nose high and reduces front-end dive under braking, which sharpens turn-in response on high-traction, smooth tracks where a softer spring would let the chassis roll too far and wash out mid-corner.\u003c\/p\u003e\u003cp\u003eThese install as a direct-fit tuning option on the front of the Kyosho Ultima RT5, RT6, SC, SC6, and DB when running big bore shocks, dropping in for the kit springs with no modification needed. They occupy the stiff end of the M-length range, so they pair naturally with the medium and medium-hard rates in the same series as you work through setup changes. Package includes two matched front springs, so both front dampers stay balanced side to side.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547395178818,"sku":"KYOXGS022","price":16.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoxgs022.jpg?v=1713233551"},{"product_id":"kyosho-um521-1-sp-type-b-middle-suspension-arm-set-ultima-rb5-rb6","title":"Kyosho UM521-1 Middle Suspension Arm Set","description":"\u003cp\u003eThe Kyosho UM521-1 Middle Suspension Arm Set is a genuine SP-spec Type B arm set for Kyosho's 1\/10 scale 2WD buggies. The rear arm in this set is the mid-length design, running slightly longer than the standard arm to change rear geometry and improve steering, and it carries middle shock mounting positions that let you run the shocks in the layout used by Kyosho's Japanese Championship setup. That extra mounting option changes the leverage ratio on the damper, giving another meaningful tuning lever beyond springs and oil.\u003c\/p\u003e\u003cp\u003eThis is the standard replacement arm set for the Ultima RB5 SP2 and an optional upgrade for the RB5 and RB5 SP, with the rear arm also usable as an option on the Lazer FS2. Note that these arms are designed to run with Kyosho's Type B rear hubs, so plan the pairing before installing. Package includes one front arm, one rear arm, and the required spacers.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547395408194,"sku":"KYOUM521-1","price":6.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum521-1.jpg?v=1713233552"},{"product_id":"kyosho-um523-offset-motor-spacer-ultima-rt5-rt6-rb5-rb6-sc-db","title":"Kyosho UM523 Motor Offset Spacer","description":"\u003cp\u003eThe Kyosho UM523 Motor Offset Spacer is a genuine option part for Kyosho's 1\/10 scale 2WD Ultima platforms. This spacer repositions the motor in the chassis, shifting mass toward the centerline to improve left-to-right weight balance. On a 2WD buggy or truck, where the motor is one of the heaviest single components, moving it changes how the chassis rotates and how evenly the rear tires load through a corner, which is why the offset conversion became a popular setup change for racers chasing more consistent corner exit.\u003c\/p\u003e\u003cp\u003eKyosho lists this spacer for the Ultima RB5, RT5, and SC, and it carries through the RT6, RB6, and DB models built on the same transmission layout. Important fitment note: the offset spacer must be used together with Kyosho's matching main gear shaft, since the standard shaft will not position correctly with the motor relocated. The longer mounting screws needed for the conversion are supplied with the spacer, so the package covers what the swap requires.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547395670338,"sku":"KYOUM523","price":7.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum523.jpg?v=1713233552"},{"product_id":"kyosho-97008-40h-hard-tie-rod-2-ultima-rt5-rb5-rb6-lazer-zx-5","title":"Kyosho 97008-40H Hard Adjust Rod 3x40mm (2)","description":"\u003cp\u003eKyosho 97008-40H is a genuine pair of 3x40mm hard-spec adjustable rods. These hardened steel turnbuckles thread into ball cups at each end, letting you set link length precisely with a turnbuckle wrench instead of pulling the linkage apart. The hard specification is the key difference here: these are noticeably stronger than the standard rods supplied in earlier kits, which matters most on the steering side where a bent link immediately throws off your setup.\u003c\/p\u003e\u003cp\u003eThe 40mm length is specified as the steering servo adjusting rod on these platforms, connecting the servo horn to the servo saver, so a straight, rigid link translates directly into accurate steering response. Fitment covers the Kyosho Ultima RT5, RB5, and RB6 along with the Lazer ZX-5, and they carry through to later cars like the RB7 that use the same 3x40mm size. They install as direct replacements with no modification needed. Package includes two hard adjust rods, enough to service a matched pair or keep a spare for the pit box.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547396194626,"sku":"KYO97008-40H","price":11.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyo97008-40h_2.jpg?v=1718249997"},{"product_id":"kyosho-brg100-diff-thrust-bearing-ultima-rt5-rb5-rb6-sc-db-lazer-zx-5","title":"Kyosho BRG100 Diff Thrust Bearing","description":"\u003cp\u003eThe Kyosho BRG100 Diff Thrust Bearing is the genuine replacement thrust bearing for ball differentials on Kyosho's 1\/10 scale off-road and touring platforms. Unlike a standard radial bearing, a thrust bearing is built to handle axial load, and inside a ball diff that is exactly the job: it carries the clamping force from the diff screw while letting the adjustment nut turn smoothly. A healthy thrust bearing is what makes diff settings repeatable, since a notchy or worn one causes the diff to tighten unevenly and slip inconsistently mid-run.\u003c\/p\u003e\u003cp\u003eThrust bearings are a wear item by design, and racers typically replace them at regular rebuild intervals along with fresh diff balls and grease. This is a direct factory replacement fitting the Ultima RT5, RB5, RB6, SC, and DB, plus the Lazer ZX-5 and other Kyosho models built around the same ball diff. Pack a little thrust bearing grease on it during assembly and the diff will feel smooth and hold its setting through a full race day.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547396292930,"sku":"KYOBRG100","price":5.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyobrg100.jpg?v=1713233551"},{"product_id":"kyosho-tf120-ball-diff-screw-set-ultima-rt5-rt6-rb5-rb6-sc","title":"Kyosho TF120 Ball Diff Screw Set","description":"\u003cp\u003eKyosho TF120 is the genuine ball differential screw set for Kyosho's 1\/10 platforms. The diff screw is the single most important adjustment in a ball differential: threading it in or out changes the clamping pressure on the diff plates and balls, which sets how much the diff slips under power. A worn or stretched screw makes that adjustment vague and lets the setting drift during a run, so replacing it is one of the first things to do when a diff stops holding.\u003c\/p\u003e\u003cp\u003eOriginally released for the TF-5 Stallion touring car, this screw set is also called out in Kyosho's off-road parts lists, covering the Ultima RT5, RT6, RB5, RB6, and SC and the Ultima SB Dirt Master. It installs as a direct replacement for the kit hardware with no modification. Fitting a fresh screw alongside new diff balls, plates, and thrust bearing is the standard full-rebuild practice that restores crisp, predictable diff action.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547396882754,"sku":"KYOTF120","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/s_d6sd5s6d5s6d5s_1.jpg?v=1716142637"},{"product_id":"kyosho-um145-foam-ball-end-sheet-ultima-rt5-rt6-rb5-rb6-lazer-zx-5","title":"Kyosho UM145 Ball End Sheet","description":"\u003cp\u003eKyosho UM145 is a genuine sheet of foam ball end pads for Kyosho's 1\/10 scale off-road buggies. These small foam discs sit inside the ball cups on camber links, steering links, and shock ends, taking up the tiny amount of free play between the cup and the ball. That does two useful things: it removes slop from the linkage so steering and camber settings stay precise, and it adds enough friction that ball cups are far less likely to pop off during a hard landing or a tumble.\u003c\/p\u003e\u003cp\u003eThey are consumable by nature, compressing over time and needing replacement whenever you rebuild links or notice a cup working loose. This is the factory part rather than a generic substitute, so the thickness matches what Kyosho designed the cups around. Fitment covers the Ultima RT5, RT6, RB5, RB6, RB6.6, and RB7 along with the Lazer ZX-5, ZX6, and ZX7. The sheet supplies sixteen pads, enough to service a full set of links.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547397144898,"sku":"KYOUM145","price":3.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum145.jpg?v=1713233559"},{"product_id":"kyosho-um520s-short-rear-shock-tower-ultima-rb5","title":"Kyosho UM520S Short Rear Shock Stay","description":"\u003cp\u003eThe Kyosho UM520S Short Rear Shock Stay is the genuine wide short rear shock tower for Kyosho's 1\/10 scale 2WD racing buggy. The shock tower is a primary tuning component: where the shock mounts on the tower sets the damper angle and leverage ratio, which changes how the rear suspension responds to bumps and how much the chassis rolls under load. This short, wide version lays the shocks over at a different angle than the standard tower, a setup Kyosho's factory drivers used to chase more rear traction and a smoother feel on rough tracks.\u003c\/p\u003e\u003cp\u003eMolded from carbon composite, it delivers high stiffness with light weight and holds up to the repeated impact loads a rear tower absorbs. This part is standard equipment on the Ultima RB5 SP2 WC and installs as a direct-fit option on the RB5 and RB5 SP, appearing as the Wide Short choice on Kyosho's own setup sheets. Package includes one rear shock stay.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547397243202,"sku":"KYOUM520S","price":8.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum520s.jpg?v=1713233560"},{"product_id":"kyosho-w5015-shock-ends-4-ultima-rt5-rb5-rb6-lazer-zx-5","title":"Kyosho W5015 Shock End (4)","description":"\u003cp\u003eKyosho W5015 is a genuine four-pack of shock ends, the plastic rod ends that thread onto the bottom of each shock shaft and snap over the ball stud on the suspension arm. They are a wear item and a crash item at the same time: the socket opens up gradually with use, which introduces slop into the damper mount, and a hard impact can crack or pop one off entirely and leave a shock dangling. Replacing them restores a tight, quiet connection between the damper and the arm.\u003c\/p\u003e\u003cp\u003eThese are the short-style ends, molded from a tough plastic that holds its grip on the ball without binding through the suspension travel. Fitment is broad across Kyosho's 1\/10 range, covering the Ultima RT5, RB5, and RB6 along with the Lazer ZX-5, and Kyosho lists the same shock end on other models using this damper design. Package includes four shock ends, enough to rebuild the ends on all four shocks.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547397374274,"sku":"KYOW5015","price":3.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow5015.jpg?v=1713233560"},{"product_id":"kyosho-w5181-55-front-shock-spring-sm-55-2-ultima-rt5-rb5-sc-db-lazer-zx-5","title":"Kyosho W5181-55 Front Spring #55 (2)","description":"\u003cp\u003eKyosho W5181-55 is a genuine pair of short front shock springs rated at #55. In Kyosho's numbering, lower means softer, and with the kit springs sitting at #70 this pair is a meaningful step down in rate. A softer front spring lets the front end compress more and transfer weight forward, which builds steering grip and helps the front tires track through bumps rather than deflecting off them. It is the go-to change for loose, dusty, or rough surfaces where the car pushes through corners.\u003c\/p\u003e\u003cp\u003eThese are the short S-length springs specified for the front dampers on this chassis family, installing as a direct-fit tuning option in place of the kit springs. Fitment covers the Ultima RT5, RB5, SC, and DB along with the Lazer ZX-5 in its RTR, SP, FS, and FS2 versions. Since they follow the same rate scale as the rest of the W5181 series, moving up or down a step is straightforward. Package includes two matched front springs.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547397472578,"sku":"KYOW5181-55","price":5.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyow5181-55.jpg?v=1713233560"},{"product_id":"kyosho-w5184-04-front-shock-shaft-2-ultima-rb5-rb6-lazer-zx-5","title":"Kyosho W5184-04 42mm Front Shock Shaft (2)","description":"\u003cp\u003eKyosho W5184-04 is a genuine pair of 42mm front shock shafts for Kyosho's 1\/10 scale off-road dampers. These polished steel shafts stroke through the shock seals and cartridge every time the suspension works, so the surface finish is what determines whether the damper feels plush or harsh. A scored or bent shaft tears seals, leaks oil, and adds stiction that no amount of oil weight tuning will fix, which is why fresh shafts are a standard part of a proper shock rebuild.\u003c\/p\u003e\u003cp\u003eThe 42mm length is the front shaft size for this chassis family, installing as a direct replacement in the Ultima RB5 and RB6 and the Lazer ZX-5 series, including the SP versions. Kyosho lists them as fitting the W5194V and W5303V shock sets. Swap them in with new seals and fresh oil and the front dampers come back to smooth, consistent action. Package includes two shock shafts, covering both front shocks.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547397734722,"sku":"KYOW5184-04","price":8.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/files\/kyoW5184-04.webp?v=1743612778"},{"product_id":"kyosho-umw502-01-pin-collar-set-ultima-rb5-rb6","title":"Kyosho UMW502-01 Pin and Collar Set","description":"\u003cp\u003eKyosho UMW502-01 is the genuine pin and collar service set for Kyosho's optional wide-hex wheel shaft on the 1\/10 scale 2WD buggy. The wheel pin is the small cross pin that transfers drive from the axle into the wheel hex, and the collar positions the wheel correctly on the shaft. Both are small, hard-working parts: the pin takes the full torque load every time you get on the throttle, and it is also the piece most likely to shear or wander out after a hard landing or a wheel-off crash.\u003c\/p\u003e\u003cp\u003eThis set exists so you can replace those wear items on their own instead of buying a complete wheel shaft assembly, which makes it a genuinely economical spare. It is the designated service pack for Kyosho's UMW502 wheel shaft, the version sized for Pro-Line wheels, and fits the Ultima RB5 and RB6 where that shaft is installed. Keep a set in the pit box, since a missing wheel pin ends a run immediately.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547398193474,"sku":"KYOUMW502-01","price":4.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoumw502-01.jpg?v=1713233560"},{"product_id":"kyosho-um510-01-swing-shaft-62-5mm-ultima-rb5-lazer-zx-5","title":"Kyosho UM510-01 Swing Shaft 62.5mm","description":"\u003cp\u003eKyosho UM510-01 is a genuine 62.5mm swing shaft, the inner half of the universal driveshaft assembly on Kyosho's 1\/10 scale off-road buggies. This is the shaft that runs from the differential outdrive to the outer axle joint, transmitting all the drive torque to the rear wheel while allowing the suspension to move through its full travel. Universals see constant articulation under load, so the shaft and its joint are among the harder-working steel parts on the car.\u003c\/p\u003e\u003cp\u003eBecause Kyosho sells this piece individually, you can repair a damaged universal by replacing just the failed component instead of buying a complete new set, which is a real saving when only one side is bent. It is the direct service part for the UM510 universal swing shaft set, fitting the Ultima RB5 and the Lazer ZX-5 where that set is installed. Package includes one swing shaft. Pair it with the matching wheel shaft if the outer half is damaged too.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547398291778,"sku":"KYOUM510-01","price":6.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum510-01.jpg?v=1713233561"},{"product_id":"kyosho-org078-o-ring-set-black-4-ultima-rt5-rb5-rb6-sc-db-lazer-zx-5","title":"Kyosho ORG078 O-Ring 0.78 Black (4)","description":"\u003cp\u003eKyosho ORG078 is a genuine four-pack of 0.78 o-rings for the big bore shock system on Kyosho's 1\/10 scale off-road vehicles. These are the lower cartridge o-rings that also serve the spring pre-load collar, sealing the shock cartridge and giving the collar enough friction to hold its position under vibration. That second job matters more than it sounds: a collar that creeps changes your ride height and spring preload mid-run, which quietly ruins a setup you spent practice sessions dialing in.\u003c\/p\u003e\u003cp\u003eO-rings are consumables that harden and take a set over time, so replacing them at rebuild intervals keeps shocks sealed and settings stable. These install as direct factory replacements in Kyosho's big bore shock sets, fitting the Ultima RT5, RB5, RB6, SC, and DB along with the Lazer ZX-5 series and later cars like the RB7 built on the same damper. Package includes four o-rings, enough to service a pair of shocks. Fit them with a light coat of shock grease.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547398390082,"sku":"KYOORG078","price":4.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoorg078.jpg?v=1713233561"},{"product_id":"kyosho-1701bk-black-zip-ties-18-ultima-rb6-v-one-rrr-dbx-mrf","title":"Kyosho 1701BK Color Strap M Black (18)","description":"\u003cp\u003eKyosho 1701BK is an eighteen-pack of medium-length nylon straps, the genuine Kyosho version of the cable tie every RC builder goes through by the handful. They handle the wiring jobs that keep a chassis reliable: securing ESC and motor leads away from the spur gear and driveshafts, bundling receiver and sensor wires, anchoring a battery, and tidying antenna tubes. Loose wiring is a genuine failure point in RC, since a lead that drifts into a rotating gear ends a run instantly and can take the wire with it.\u003c\/p\u003e\u003cp\u003eThe M length suits most 1\/10 scale wiring work, long enough to wrap a battery pack or a bundle of leads without excess tail. These are universal accessories, so they work on any Kyosho vehicle and any other brand in your fleet, and Kyosho lists them across models including the Ultima RB6, V-One RRR, DBX, and MFR. Package includes eighteen straps, enough to sort out an entire build with spares.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547398488386,"sku":"KYO1701BK","price":3.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyo1701bk.jpg?v=1718221600"},{"product_id":"kyosho-um569-steel-axle-shaft-set-2-ultima-rb5-rb6","title":"Kyosho UM569 Steel Axle Shaft Set (2)","description":"\u003cp\u003eThe Kyosho UM569 Steel Axle Shaft Set is a genuine pair of front axles for Kyosho's 1\/10 scale 2WD racing buggy. These are steel axles with the wheel hex built directly into the shaft, which is a meaningful upgrade over a separate hex: fewer parts in the stack means less flex and no chance of a loose hex creeping on the axle. Steel construction handles the bending loads that front axles take from curb strikes and hard landings far better than lighter alternatives.\u003c\/p\u003e\u003cp\u003eThe built-in hex design also gives you a tuning option, since the axle position lets you adjust front track width to change steering feel and stability. These are standard equipment on the Ultima RB5 SP2 WC and install as a direct-fit option part across the RB5 and RB6 series, dropping into the stock front hubs with no modification. Package includes two axle shafts, a complete set for both front corners so the car stays symmetrical.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547398750530,"sku":"KYOUM569","price":11.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/products\/kyoum569.jpg?v=1713233562"},{"product_id":"kyosho-w5303-03-big-bore-shock-seals-4-ultima-rt5-rb5-rb6-sc-db-lazer-zx-5","title":"Kyosho W5303-03 Big Bore Shock Seal (4)","description":"\u003cp\u003eKyosho W5303-03 is a genuine four-pack of L-size shock seals for Kyosho's big bore dampers. These seals sit in the shock cap and cartridge, keeping oil in and dirt out while the shaft strokes through them thousands of times per run. They are the single most important consumable in a shock: as a seal hardens or nicks, the damper starts weeping oil, the oil level drops, and damping fades progressively through a race without any obvious warning until the car starts bottoming or feeling loose.\u003c\/p\u003e\u003cp\u003eReplacing seals at every rebuild is standard practice for anyone running competitively, and at this price there is no reason to reuse old ones. These are direct factory replacements for Kyosho's big bore shock sets, fitting the Ultima RT5, RB5, RB6, SC, and DB along with the Lazer ZX-5 and ZX6 series. Package includes four seals, enough to service two shocks. Fit them with shock grease on assembly for smooth initial stroke.\u003c\/p\u003e","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":47547399078210,"sku":"KYOW5303-03","price":4.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5063\/8402\/files\/w5303-03.jpg?v=1778843040"}],"url":"https:\/\/www.powerhobby.com\/collections\/ultima-parts.oembed?page=12","provider":"PowerHobby","version":"1.0","type":"link"}