Sport/Street Bike Drivetrain & Transmission Parts
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Drive Chains
Sprockets
Chain & Sprocket Kits
Drive Belts & Pulleys
Clutches
Transmissions & Components
Variators
Axles & Accessories
Chain Guide, Protection & Sliders
Sprocket Guards
Transmission Covers
Chain & Belt Adjusters
Primary Chain & Belt Tensioners
Clutch Lines
Transmission Gaskets, Seals & Bushings
Drivetrain & Transmission Bearings
Drivetrain & Transmission Mounts
Engine & Transmission Custom Covers
Chain Lubes & Cleaners
Transmission Fluids & Oils
Gear Oils
Greases
Drivetrain & Transmission Tools
Featured Brands
- EBC®SRC Street Racer™ Clutch KitSRC Street Racer™ Clutch Kit by EBC®. An aramid paper lined plate set complete with heavy duty clutch springs. An aramid paper lined plate set complete with heavy duty clutch springs (for bikes fitted with diaphragm type springs EBC...Expertly crafted from the highest grade materialsWill deliver years of reliable service$85.74 - $208.83
- All Balls®Wheel Bearing KitWheel Bearing Kit by All Balls®. Hands down, the most complete line of wheel bearing and seal kits. All the bearings and seal required to refit a wheel in one convenient package. Premium high-speed bearings feature low drag, double lip...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$8.53 - $80.34
- D.I.D Chain®DZ2 Super Non O-Ring ChainUniversal DZ2 Super Non O-Ring Chain by D.I.D Chain®. Superior wear resistance, 2x greater than the former D.I.D 520DZ. Upgraded with D.I.D exclusive SDH technology for an extremely hard chromium carbide layer for maximum wear...Designed exclusively for racingThis hi-tech pin treatment forms an extremely hard chromium carbide layer on the pins surface while maintaining a soft inner core$55.09 - $80.62
- Maxima Racing Oils®Chain Wax Lubricant AerosolUniversal Chain Wax Lubricant Aerosol by Maxima Racing Oils®. Contains no CFC's! Maxima Clean Up is a heavy duty, emulsion type cleaner designed to thoroughly clean chains without harming rubber o-rings or metal surfaces. Outstanding...$4.27 - $181.14
- Alto®Carbonite™ Hi-Performance PowerPak Clutch KitCarbonite™ Hi-Performance PowerPak Clutch Kit by Alto®. Carbonite® based friction material: offers superior coefficient of friction, provides higher temperature capacity, decreases wear while increasing durability. High-performance,...Available manufacturer’s lifetime warrantyMade in USA$230.71 - $245.50
- 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$9.99 - $211.67
- Motion Pro®Spanner Nut SocketSpanner Nut Socket by Motion Pro®. Used for the removal and installation of spanner (castle) lock nuts. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design...Used for removal and installation of spanner (castle) lock nutsPremium quality high carbon steel$27.99 - $65.99
- KG Powersports®Clutch Separator PlateClutch Separator Plate by KG Powersports®. Separator plates are manufactured in both Japan, close to the OEMs, and right here in the U.S. to rigid specifications. Separator plates are non-contaminating, free of any warping, and fully...Crafted from OE quality materialsMade to be stronger than your factory unit$10.79 - $14.61
- Outlaw Racing®Wheel Bearings and Seal KitWheel Bearings and Seal Kit by Outlaw Racing®. 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...Hands down, the most complete line of wheel bearing & seal kitsAll the bearings and seal required to re-fit a wheel in one convenient package$9.83 - $46.88
- Barnett Clutches®Clutch Friction PlatesClutch Friction Plates by Barnett Clutches®. Barnett's new "segmented" friction material design increases oil flow through the clutch and provides a smoother, more consistent performance and extended clutch life. Kits feature race...Expertly developed to serve the motorcycleCrafted from high-grade materials using current technologies$11.23 - $179.69
- JT Sprockets®X1R Series Heavy Duty X-Ring ChainUniversal X1R Series Heavy Duty X-Ring Chain by JT Sprockets®. Using JT experience and technical expertise in drive components ensure that the specifications of JT advanced power transfer chains meet or exceed the requirements of all...Increased strength and durabilityUnrivaled quality matched with excellent reliability$56.18 - $61.28
- Pro-Bolt®Front Axle Pinch Bolt SetFront Axle Pinch Bolt Set by Pro-Bolt®. 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 for the ultimate in customizationBuilt with a strong passion for motorcycles$8.08 - $29.47
- Pro-Bolt®Axle Adjuster SetAxle Adjuster Set by Pro-Bolt®. Bolts & Nuts. 2 Pieces. An area of the bike which works hard and gets down right dirty, why not give it some love and take the hard work out of adjusting your chain tension with Pro-Bolt® smooth rust...Designed for the ultimate in customizationBuilt with a strong passion for motorcycles$19.27 - $26.07
- Winderosa®Clutch Cover GasketClutch Cover Gasket by Winderosa®. 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...High-performance gaskets for hardcore racing junkiesGreat for your dirtbike, snowmobile, ATV, PWC, or small engine$3.38 - $17.73
- All Balls®Clutch Master Cylinder Rebuild KitClutch Master Cylinder Rebuild Kit by All Balls®. Contains all the necessary components to completely rebuild the clutch master cylinder.All Balls offers the Industry's most comprehensive line of bearing and seal kits, drive line and...Performance wheel bearing solutions for your bikeUsed by pro racing pilots and amateur bikers around the world$19.58 - $47.67
- All Balls®Clutch Slave Cylinder KitClutch Slave Cylinder Kit by All Balls®. When it comes to quality, All Balls® knows no compromises.All the products made by this stringent quality control conditions.The latest manufacturing methods coupled with the use of the...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$17.54 - $59.66
- Barnett Clutches®Clutch Plate KitClutch Plate Kit by Barnett Clutches®. Plate Segmented friction plates and tempered steel drive plates specifically designed for Ducati motorcycles. This top-grade product is expertly made in compliance with stringent industry standards...Expertly developed to serve the motorcycleCrafted from high-grade materials using current technologies$154.73 - $256.08
- Barnett Clutches®Clutch Spring KitClutch Spring Kit by Barnett Clutches®. 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 developed to serve the motorcycleCrafted from high-grade materials using current technologies$15.29 - $48.43
- Barnett Clutches®Diaphragm Clutch SpringDiaphragm Clutch Spring by Barnett Clutches®. 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...Standard and heavy-duty availableMade in USA$16.85 - $35.10
- Barnett Clutches®Extra Plate Clutch KitExtra Plate Clutch Kit by Barnett Clutches®. Barnett's new "segmented" friction material design increases oil flow through the clutch and provides a smoother, more consistent performance and extended clutch life. Kits feature...Made in USAExpertly developed to serve the motorcycle$201.00 - $239.89
- Barnett Clutches®Scorpion ClutchScorpion Clutch by Barnett Clutches®. Greatly increases clutch capacity. Provides smoother shifting and multiple spring pressure options. Ideal for stock to highly modified applications. Includes steel hub, billet pressure plate, clutch...Kit includes extra springs for tuning the clutchEasy tunability without removal of primary cover$592.59
- Barnett Clutches®Scorpion Clutch Lock PlatesScorpion Clutch Lock Plates by Barnett Clutches®. Barnett Scorpion Clutch Lock Plates are the perfect replacements for Scorpion Clutches. This top-grade product is expertly made in compliance with stringent industry standards to offer...Made in USACrafted from high-grade materials using current technologies$26.07
- Barnett Clutches®Scorpion Clutch Plate KitScorpion Clutch Plate Kit by Barnett Clutches®. Dry. Barnett Scorpion Clutch Replacement Clutch Kits have billet steel and aluminum clutch. Smooth, positive engagement and release for finding neutral and positive shifting. Steel spacers...Kit includes extra springs for tuning the clutchEasy tunability without removal of primary cover$173.31 - $229.27
- Biker's Choice®Clutch Pull RodUniversal Clutch Pull Rod 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...Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials$9.84 - $11.11
- EBC®CKF Series™ Carbon Fiber Clutch KitCKF Series™ Carbon Fiber Clutch Kit by EBC®. Carbon-Fiber Impregnated. The EBC Brakes CKF kit is a tough carbon fiber impregnated moto-x/ATV clutch which is longer lasting and grippier than standard cork based units (friction plates...Expertly crafted from the highest grade materialsWill deliver years of reliable service$39.05 - $138.49
- EBC®CSK Series™ Diaphragm Clutch Spring KitCSK Series™ Diaphragm Clutch Spring Kit by EBC®. Premature or rapid clutch wear is often caused by tired clutch springs. Always replace springs at clutch rebuild. These premium upgrade springs reduce chance of clutch slip and the...Catalogue pre selects diaphragm or coil spring type as requiredSpring tension 15% higher than standard$41.72 - $52.25
- EBC®DRC Series™ Off-Road Clutch Rebuild KitDRC Series™ Off-Road Clutch Rebuild Kit by EBC®. The Ultimate clutch rebuild for your ATV and Moto Cross machine. Here's why? Stack height is the all important factor when renewing a clutch and riders are always best to buy a...Complete stack height controlled set of friction plates usingEBC unique alloy article impregnated clutch facings that wear longer and resists burning plus$41.27 - $277.34
- EBC®Dirt Racer Clutch SetDirt Racer Clutch Set by EBC®. 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...Expertly crafted from the highest grade materialsWill deliver years of reliable service$56.39 - $202.96
- Hinson Clutch Components®Billetproof Clutch BasketBilletproof Clutch Basket by Hinson Clutch Components®. Billetproof™ Clutch Basket by Hinson®. The Winningest Clutch Basket in the World, race proven by all the best teams worldwide including Team Muscle Milk Honda, Team Red...Used by most major factory teams and ridersImproves clutch performance and life$249.99 - $749.99
- Hinson Clutch Components®Billetproof Inner HubBilletproof Inner Hub by Hinson Clutch Components®. Billetproof™ Inner Hub by Hinson®. Improves clutch performance, clutch life and heat dissipation. Used by all major factory teams and riders. Precision machined from billet...Used by most major factory teams and ridersImproves clutch performance and life$309.99 - $319.99
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.