Motorcycle Drivetrain & Transmission Parts
Drive Chains
Sprockets
Drive Belts & Pulleys
Primary Chains & Belts
Clutches
Transmissions & Components
Variators
Driveshaft
Axles & Accessories
Chain Guide, Protection & Sliders
Transmission Covers
Primary Chain & Belt Tensioners
Clutch Lines
Transmission Gaskets, Seals & Bushings
Drivetrain & Transmission Bearings
Drivetrain & Transmission Mounts
Engine & Transmission Custom Covers
Drive Belt & Drive Shaft Covers
Chain Lubes & Cleaners
Transmission Fluids & Oils
Gear Oils
Greases
Drivetrain & Transmission Tools
Featured Brands
- JT Sprockets® - Chromoly Steel Alloy Front SprocketChromoly Steel Alloy Front Sprocket by JT Sprockets®. JT Sprockets is the world's leading brand of sprockets for motorcycles and ATVs. Using only the finest raw materials and using cutting edge technology in their production, JT...Increased strength and durabilityUnrivaled quality matched with excellent reliability$5.33 - $21.02Availability Varies - Depends on Product Options
- JT Sprockets® - High Carbon Steel Rear SprocketHigh Carbon Steel Rear Sprocket by JT Sprockets®. JT Sprockets is the world's leading brand of sprockets for motorcycles and ATVs. Using only the finest raw materials and using cutting edge technology in their production, JT Sprockets...Increased strength and durabilityUnrivaled quality matched with excellent reliability$8.47 - $40.13Availability Varies - Depends on Product Options
- Boyesen® - Factory Racing Clutch CoverFactory Racing Clutch Cover by Boyesen®. Set your apart from the rest with the ultimate look in race performance. Add style and the Factory look with a Boyesen Factory Clutch Cover. Exterior grade, UV resistant powder coat finish. Made...Gives your machine the Factory Works lookLightweight factory covers provide years of outstanding protection; guaranteed not to warp$76.88 - $120.00Availability Varies - Depends on Product Options
- ProTaper® - Gold Series ChainsUniversal Gold Series Chains by ProTaper®. Designed, tested, and produced to the highest standards, ProTaper Gold Series Chains are purpose-built for today's demanding 4-stroke motorcycles and ATVs. ProTaper chains are manufactured with...Premium Gold Series motocross chainsLightweight, ultra high-strength chromoly construction$36.41 - $97.28In Stock - Ships within 24 hrs
- Polisport® - Clutch Cover ProtectorClutch Cover Protector by Polisport®. Polisport widens its line of bike protections with the new Clutch Cover Protectors, developed with exclusive Polisport design. Finally, you can have them in the aftermarket for the majority of the...Abrasion and impact resistantBuilt-in rubber o-ring$20.67 - $28.25Availability Varies - Depends on Product Options
- BikeMaster® - 520 Series Sprocket520 Series Sprocket by BikeMaster®. Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$9.94 - $28.26Availability Varies - Depends on Product Options
- ProTaper® - Steel Race Spec Front SprocketSteel Race Spec Front Sprocket by ProTaper®. ProTaper Race Spec (RS) Front Sprockets are CNC machined and internally broached to precise tolerances from case-hardened, core-refined chromoly steel. Computer engineering ensures precise...Precision broached and machined to the strictest standardsCase hardened cro-moly steel$25.07In Stock - Ships within 24 hrs
- JT Sprockets® - Aluminium Racing Rear SprocketAluminium Racing Rear Sprocket by JT Sprockets®. JT Sprockets is the world's leading brand of sprockets for motorcycles and ATVs. Using only the finest raw materials and using cutting edge technology in their production, JT Sprockets...Increased strength and durabilityUnrivaled quality matched with excellent reliability$22.66Availability Varies - Depends on Product Options
- ProX® - Complete Clutch Plate SetComplete Clutch Plate Set by ProX®. To be sure that the clutch plates and springs are perfectly matched for ultimate clutch performance. ProX offers one part number for the matched parts packaged in a nice kit. ProX complete clutch...Made to exact OEM specifications to offer maximum performance and durabilitySets contain all plates and springs per application for easy replacement$99.97 - $288.46Availability Varies - Depends on Product Options
- ProX® - SprocketSprocket by ProX®. The perfect fit together with the drive chains. The front sprockets are grooved and ultra-light and are the top level quality sprockets. Manufactured from low corrosion SCM435 Ni-Chrome Molybdenum steel, featuring a...Carefully developed for the highest level of qualityReady to serve reliably for years to come$16.65 - $59.99Availability Varies - Depends on Product Options
- Hinson Clutch Components® - FSC Clutch Plate and Spring KitFSC Clutch Plate and Spring Kit by Hinson Clutch Components®. FSC Clutch Plate and Spring Kit by Hinson®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced...Can be used with OE baskets, inner hubs, & pressure platesDeveloped with and recommended to enhance the performance of Hinson clutch baskets, inner hubs, and pressure plates$188.20 - $199.99Availability Varies - Depends on Product Options
- Cometic Gasket® - Clutch Cover GasketClutch Cover Gasket by Cometic Gasket®. Clutch cover gaskets are made from an AFM material, which is chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core. Aluminum core gives the gasket strength for a...Expertly crafted from the highest grade materialsPrecise engineering ensures the latest in quality$6.74 - $18.08Availability Varies - Depends on Product Options
- Vesrah® - Cork Clutch Friction SetCork Clutch Friction Set by Vesrah®. All Vesrah products are made in Japan. Vesrah clutch friction is high quality and precision product. This top-grade product is expertly made in compliance with stringent industry standards to offer a...Cork Material Clutch Friction give you an excellent Cost-PerformanceCork is used current big motorcycle such as Yamaha R1$7.34 - $140.95Availability Varies - Depends on Product Options
- BikeMaster® - 420 Series Sprocket420 Series Sprocket by BikeMaster®. Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$6.36 - $24.65In Stock - Ships within 24 hrs
- BikeMaster® - 530 Series Sprocket530 Series Sprocket by BikeMaster®. Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$12.61 - $31.16Availability Varies - Depends on Product Options
- Gates® - G-Force C12 Carbon Cord CVT BeltG-Force C12 Carbon Cord CVT Belt by Gates®. Gates continues to lead the way in CVT belt innovation, technology and development for todays are areational and utility all-terrain equipment. In addition to the G-Force line, Gates now...The first CVT belt utilizing a carbon tensile cord, combining minimal stretch with extraordinary strengthHigh performance neoprene with a trapezoidal top-notch and rounded bottom cog design maximizing heat control and flexibility$57.00 - $146.84Availability Varies - Depends on Product Options
- BikeMaster® - 428 Series Sprocket428 Series Sprocket by BikeMaster®. Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$7.89 - $27.03In Stock - Ships within 24 hrs
- ProX® - Clutch BasketClutch Basket by ProX®. Clutch Baskets are precision machined from heat treated aircraft Billet 7075-T6 aluminium alloy to O.E. precision standards. Sophisticated hard-anodising guarantees extended life under severest racing...Sophisticated hard-anodizing guarantees extended life under severest racing conditionsEach kit comes with the necessary hardware to make installation a snap$234.99 - $260.99Availability Varies - Depends on Product Options
- ProX® - Clutch Hub and Pressure PlateClutch Hub and Pressure Plate by ProX®. Offers a complete line clutch pressure plates for the Dirtbike and ATV segment. The pressure plates are manufactured by the leading OEM factory in Japan. The die-cast parts are machined to OEM...Carefully developed for the highest level of qualityReady to serve reliably for years to come$35.11 - $60.99Availability Varies - Depends on Product Options
- ProTaper® - Race Spec Aluminum Rear SprocketRace Spec Aluminum Rear Sprocket by ProTaper®. ProTaper Race Spec (RS) Aluminum Rear Sprockets are precision CNC machined to the strictest tolerances from the highest quality alloy that has been specially formulated for off-road...7075-T6 Heat Treated AluminumPrecision CNC machined to strictest of tolerances$77.38In Stock - Ships within 24 hrs
- ProX® - Inner Clutch HubInner Clutch Hub by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Carefully developed for the highest level of qualityReady to serve reliably for years to come$80.99Availability Varies - Depends on Product Options
- JT Sprockets® - Front Sprocket SpacerFront Sprocket Spacer by JT Sprockets®. Also provide two M8 hex nuts to "double lock" the adjustment bolts and keep them from loosening. This top-grade product is expertly made in compliance with stringent industry standards to offer a...Increased strength and durabilityUnrivaled quality matched with excellent reliability$3.74In Stock - Ships within 24 hrs
- BikeMaster® - 525 Series Sprocket525 Series Sprocket by BikeMaster®. Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$10.72 - $27.84In Stock - Ships within 24 hrs
- BikeMaster® - 630 Series Sprocket630 Series Sprocket by BikeMaster®. Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$12.88 - $15.54In Stock - Ships within 24 hrs
- ProX® - Alloy Rear SprocketAlloy Rear Sprocket by ProX®. Company offers a complete range of front and rear sprockets. The ProX alloy rear sprockets are all manufactured from high grade 7075-T6 material. The total sprocket is precision cut on fully automated CNC...Offering the perfect balance between strength, performance and longevityDesigned and manufactured for a perfect fit and ultimate performance$59.99Availability Varies - Depends on Product Options
- ProX® - Front SprocketFront Sprocket by ProX®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...The perfect fit together with the drive chains.The front sprockets are grooved and ultra-light and are the top level quality sprockets.$20.53Availability Varies - Depends on Product Options
- Biker's Choice® - Compensator SprocketCompensator Sprocket by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Expertly crafted from superior materialsGuaranteed to perform for a long time$115.44In Stock - Ships within 24 hrs
- JIMS® - Pulley and Sprocket Mega NutPulley and Sprocket Mega Nut by JIMS®. JIMS now offers both early and late Mega Nuts. Once you install these left handed threaded nuts correctly they won't come loose with this exclusive lock plate design. They can also be used on BDL...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$94.73In Stock - Ships in 24 to 48 hrs
- ProTaper® - CS4 Rear Black SprocketCS4 Rear Black Sprocket by ProTaper®. Comp Spec (CS) ATV Rear Sprockets are constructed from high-strength S460 steel, yielding the longest life at an affordable price. With only a marginal increase in weight over an aluminum sprocket,...Core-refined 655M13 nickel-chrome-molybdenum alloy steelInternally broached and precision-machined to exact tolerances$38.53In Stock - Ships within 24 hrs
- Renthal® - Hard Anodised Rear SprocketUniversal Hard Anodised Rear Sprocket by Renthal®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials$84.11In Stock - Ships within 24 hrs
Motorcycle transmission and drivetrain systems have their own peculiarities. Most bikes are equipped with a manual sequential transmission. Rather compact and lightweight, it perfectly transfers power and typically has five or six gears to shift using a foot lever. Meanwhile, such renowned companies as Honda and Aprilia try to change the game by offering models with a dual-clutch gearbox or a CVT, and they achieved considerable success. However, all the abovementioned systems are quite complex mechanisms that require regular maintenance or even repairs from time to time.
Most manual assemblies are robust enough, but over time, moving parts may start giving you trouble due to friction, corrosion, or mechanical damage. Problems with a lever, shift forks, and other components of the shifting mechanism can be accompanied with a worn-out clutch, gears, and bearings, giving the bike's owner a strong reason to make a total rebuild. In CVTs, belt replacement is arguably the most common procedure; besides the belt itself, a clutch holding/removing tool is needed, and such a job requires certain experience and skills.
When it comes to final drive, engine output can be transferred to the rear wheel in three ways – via the chain, belt, or shaft. The first way is the most widespread; it's efficient and reliable enough, although the chain tends to stretch, and sprockets also gradually wear out. Such a setup needs to be periodically tightened, cleaned, and lubed to last long; fortunately, there are plenty of corresponding tools and chemicals allowing you to easily and effectively remove old dirty grease and protect metal parts from moisture and rust. As for the belt, corrosion is not an issue at all. Considered to be a decent alternative to the chain, the belt needs almost no maintenance and works quieter and smoother.
The very early bikes used leather drive belts that didn't last long. Modern belts are way stronger and use special hydrogenated nitrile rubber (HNBR) mixtures resistant to oil and heat, polyamide fabric for reinforcement, wear-resistant polyethylene coating, and other materials enabling these parts to last almost as long as the bike itself, though you may need to check and adjust the belt's deflection. Meanwhile, chains and sprockets are considered stronger than belts & pulleys and better withstand hard acceleration. Most high-performance and superpowerful motorcycles still use them, along with some custom two-wheelers where chains allow for installing different sprockets to match the output of a modified motor.
As for shaft drive, this mechanism is extremely durable and virtually maintenance-free, under the condition that you regularly change gear oil. While refilling the case, check for the presence of metal shavings in old oil, which can be the first sign of run-down gears. Also, there must be no leaks caused by faulty seals. In terms of performance, approximately 20-25 percent of torque is lost in this kind of drive, and the system is heavier than other setups, so there is no sense to install it in small-displacement and supersport motorcycles in which extra weight is undesirable. We carry quality aftermarket parts, chemicals, and tools for any of the abovementioned systems. While many components are factory-style replacements, others have a custom finish and are used for various upgrades.
