Motorcycle Drivetrain & Transmission Parts
- Drive Chains
- Sprockets
- Chain & Sprocket Kits
- Drive Belts & Pulleys
- Primary Chains & Belts
- Clutches
- Transmissions & Components
- Variators
- Driveshaft
- Axles & Accessories
- Wheel Hubs
- Chain Guide, Protection & Sliders
- Sprocket Guards
- Transmission Covers
- Chain & Belt Adjusters
- Primary Chain & Belt Tensioners
- Transmission Sensors & Switches
- 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
- Acerbis®Chain SliderChain Slider by Acerbis®. 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...Quality replacement for the stock swingarm-mounted chain sliderMeets or exceeds OEM specifications$33.36 - $44.53
- Puig®Shaft CoverShaft Cover by Puig®. Color: Black. The Puig belt guard designed specifically for Yamaha T-Max. Black color, it is made of anodized aluminum of 3 mm thickness, which gives it the rigidity necessary to protect the driver and the...Engineered to fulfill your needsWill push the limits of high quality and value$78.93
- BikeMaster®Sprocket BoltsUniversal Sprocket Bolts by BikeMaster®. Quantity: 6 Pieces. Steel sprocket bolts, includes 13 mm nylock nuts. Fits most rear sprockets. This top-grade product is expertly made in compliance with stringent industry standards to offer a...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$16.19
- Cometic Gasket®Inner Primary Bearing SealsInner Primary Bearing Seals by Cometic Gasket®. Pack of 5. 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....Expertly crafted from the highest grade materialsPrecise engineering ensures the latest in quality$15.03 - $18.38
- Cometic Gasket®Outer Primary GasketOuter Primary Gasket by Cometic Gasket®. 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 the highest grade materialsPrecise engineering ensures the latest in quality$29.46 - $191.15
- Cometic Gasket®Transmission Bearing End Cover GasketTransmission Bearing End Cover Gasket by Cometic Gasket®. 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...Expertly crafted from the highest grade materialsPrecise engineering ensures the latest in quality$20.40 - $31.48
- Cometic Gasket®Transmission Main Drive Gear Oil SealTransmission Main Drive Gear Oil Seal by Cometic Gasket®. 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...At Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level of performance for today’s powerful V-Twin engines$6.65 - $13.32
- Cometic Gasket®Transmission Rebuild Gasket KitTransmission Rebuild Gasket Kit by Cometic Gasket®. 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 the highest grade materialsPrecise engineering ensures the latest in quality$43.42 - $94.79
- Cometic Gasket®Transmission Top Cover GasketTransmission Top Cover Gasket by Cometic Gasket®. 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 the highest grade materialsPrecise engineering ensures the latest in quality$11.67 - $29.40
- Performance Machine®Sprocket and Rotor Bolt SetUniversal Sprocket and Rotor Bolt Set by Performance Machine®. Finish: Chrome. Bolts for mounting rotor to wheel hub with a button head Torx. This top-grade product is expertly made in compliance with stringent industry standards to...Engineered to fulfill your motorcycle needsWill push the limits of high quality and value$24.95 - $49.95
- QuadBoss®Wheel Bearing and Seal KitWheel Bearing and Seal Kit by QuadBoss®. High-speed bearings are manufactured to ABEC-3 precision levels. Triple-lip rubber seals keep the grease in and the water and dirt out.Chevron SRI-2 grease contains rust and oxidation inhibitors (-29° C to 177° C)Double-lip type TC seals with stainless steel garter springs$12.59 - $31.32
- Kuryakyn®Hot Spots™ Custom Chrome End PlugsUniversal Hot Spots™ Custom Chrome End Plugs by Kuryakyn®. Give your Allen head that smooth look and protect from rust damage with Hot Spots Custom End Plugs. This top-grade product is expertly made in compliance with stringent...Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$8.09 - $10.79
- BikeMaster®Replacement InsertsUniversal Replacement Inserts by BikeMaster®. 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 fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$10.33 - $12.59
- BikeMaster®Wobble Extension BarsUniversal Wobble Extension Bars by BikeMaster®. Lets you get to places you couldn't before. The BikeMaster® Wobble Extension Bars allows sockets to be driven at up to 15° off vertical. These 4-piece sets are made of hardened chrome...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$20.03 - $24.60
- JIMS®Connecting Rod Bushing ToolConnecting Rod Bushing Tool by JIMS®. Use to remove and replace wrist pin bushings without removing connecting rods from crankcases. Use JIMS® No.1284 Rod Holder tool. If you're looking for a quality product that will serve you for...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$168.61
- JIMS®Inner Cam Bearing Remover ToolInner Cam Bearing Remover Tool by JIMS®. Designed like JIMS popular EVO cam bearing tool, it removes the bearing easily without any damage to the crankcase. This precision built tool will also keep the pin rollers from accidentally...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$315.72
- JIMS®Main Drive Gear Seal InstallerMain Drive Gear Seal Installer by JIMS®. This tool is designed to properly align and install to the right depth, the main drive gear seal, H-D® No.12077 into the end of the gear. This can be performed while the assembled...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$122.99
- JIMS®Mainshaft Bearing Race ToolMainshaft Bearing Race Tool by JIMS®. Use to remove and install the bearing inner race on the transmission mainshaft. If you're looking for a quality product that will serve you for years to come, look no further.Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$275.09
- JIMS®Primary Locking BarPrimary Locking Bar by JIMS®. Use to lock primary for service work. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your ultimate...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$34.34 - $179.99
- JIMS®Sprocket Shaft Bearing Installation ToolSprocket Shaft Bearing Installation Tool by JIMS®. Use to install flywheel assembly into left crankcase Timken® bearing. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use...Installs sprocket shaft bearing and pulls lower end into left caseProducts designed to fulfill the needs of motorcyclists$208.76
- JIMS®Transmission Case Shifter Shaft Seal InstallerTransmission Case Shifter Shaft Seal Installer by JIMS®. Developed in conjunction with Hiro Koiso, one of JIMS sponsored Bonneville racers, these two simple tools make installing the shifter shaft seal precise and effortless. They...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$41.45 - $42.35
- Lang Tools®Front Axle WrenchUniversal Front Axle Wrench by Lang Tools®. 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...Reversible ratcheting wrench used to remove/install the front axle shaft on motorcycles equipped with a female six-point socket in the end of the axleVinyl grip prevents the wrench from scratching or marring the bike$58.84
- Lang Tools®Front Axle WrenchUniversal Front Axle Wrench by Lang Tools®. 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...Reversible ratcheting wrench used to remove/install the front axle shaft on motorcycles equipped with a female six-point socket in the end of the axleVinyl grip prevents the wrench from scratching or marring the bike$58.84
- Lang Tools®Front Axle WrenchUniversal Front Axle Wrench by Lang Tools®. 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...Reversible ratcheting wrench used to remove/install the front axle shaft on motorcycles equipped with a female six-point socket in the end of the axleVinyl grip prevents the wrench from scratching or marring the bike$58.84
- Lang Tools®Front Axle WrenchUniversal Front Axle Wrench by Lang Tools®. 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...Reversible ratcheting wrench used to remove/install the front axle shaft on motorcycles equipped with a female six-point socket in the end of the axleVinyl grip prevents the wrench from scratching or marring the bike$58.84
- Lang Tools®Front Axle WrenchFront Axle Wrench by Lang Tools®. 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...Reversible ratcheting wrench used to remove/install the front axle shaft on motorcycles equipped with a female six-point socket in the end of the axleVinyl grip prevents the wrench from scratching or marring the bike$58.84
- Kuryakyn®Cylinder Base CoverCylinder Base Cover by Kuryakyn®. Beautifully highlight the transition from cylinder to engine case. The perfect complement to Kuryakyn Inner Primary Covers (sold separately).Perfect for motorcycle applicationsMade with innovations for the latest in quality$43.19 - $80.96
- Kuryakyn®Kool Kaps Bolt CoversKool Kaps Bolt Covers by Kuryakyn®. Cover those unsightly and unfinished bolt heads for a smooth, finished appearance. Installs easily over the heads of existing bolts.Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$59.39 - $60.26
- Kuryakyn®Kool Kaps Engine Bolt CoversUniversal Kool Kaps Engine Bolt Covers by Kuryakyn®, 10 Pieces. Cover those unsightly and unfinished bolt heads for a smooth, finished appearance. Installs easily over the heads of existing bolts.Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$8.09 - $14.36
- Kuryakyn®Kool Kaps Engine Bolt CoversKool Kaps Engine Bolt Covers by Kuryakyn®. , 10 Pieces. Cover those unsightly and unfinished bolt heads for a smooth, finished appearance. Installs easily over the heads of existing bolts.Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$8.09 - $14.36
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.