Motocross/Dirt Bike Crankshafts & Components
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- Outlaw Racing®Complete Crankshaft Connecting Rod Assembly (OR4465)Complete Crankshaft Connecting Rod Assembly by Outlaw Racing®. Outlaw Racing Crankshafts are sold complete with the connecting rods, top end bearings, and crankshaft webs. They are also completely re buildable. They come assembled,...Designed to fulfill your motorcycle needsElaborately created with customization in mind$187.51
- Outlaw Racing®Complete Crankshaft Connecting Rod Assembly (OR4469)Complete Crankshaft Connecting Rod Assembly by Outlaw Racing®. Outlaw Racing Crankshafts are sold complete with the connecting rods, top end bearings, and crankshaft webs. They are also completely re buildable. They come assembled,...Designed to fulfill your motorcycle needsElaborately created with customization in mind$255.26
- Outlaw Racing®Complete Crankshaft Connecting Rod Assembly (OR4462)Complete Crankshaft Connecting Rod Assembly by Outlaw Racing®. Outlaw Racing Crankshafts are sold complete with the connecting rods, top end bearings, and crankshaft webs. They are also completely re buildable. They come assembled,...Designed to fulfill your motorcycle needsElaborately created with customization in mind$173.46
- ProX®Complete Crankshaft (10.2221)Complete Crankshaft 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$247.16
- ProX®Complete Crankshaft (10.1227)Complete Crankshaft 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$224.89
- ProX®Complete Crankshaft (10.6228)Complete Crankshaft 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$332.30
- ProX®Complete Crankshaft (10.4339)Complete Crankshaft 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$339.70
- ProX®Complete Crankshaft (10.2298)Complete Crankshaft 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$272.84
- ProX®Complete Crankshaft (10.6113)Complete Crankshaft 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$260.97
- ProX®Complete Crankshaft (10.3405)Complete Crankshaft 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$291.99
- ProX®Crankshaft Bearing and Seal Kit (23.CBS64003)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$132.17
- ProX®Crankshaft Bearing and Seal Kit (23.CBS23088)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$59.90
- ProX®Crankshaft Seal Kit (42.1402)Crankshaft Seal Kit 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...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$18.95
- ProX®Crankshaft Seal Kit (42.2218)Crankshaft Seal Kit 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...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$18.99
- ProX®Crankshaft Seal Kit (42.2225)Crankshaft Seal Kit 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...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$14.93
- Steahly Off Road®Flywheel Weight (921)Flywheel Weight (921) by Steahly Off Road®. Enhance the torquey power delivery of the SX, get the power to the ground and make it more chuggable. Easy to take on and off, especially when using our E-3 engine lock up tool. Two sizes...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$157.76
- Steahly Off Road®Flywheel Weight (913)Flywheel Weight by Steahly Off Road®. This easy mod will make it much easier to control the hard hitting power of the little KTM. Most woods and trail riders will benefit. All beginner and timid riders will do better because the...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$157.76
- Steahly Off Road®Flywheel Weight (910)Flywheel Weight by Steahly Off Road®. Adds 7 ounces over stock. This easy mod will make it much easier to control the hard hitting power of the little KTM. Most woods and trail riders will benefit. All beginner and timid riders will do...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$157.76
- Steahly Off Road®Flywheel Weight (903L)Flywheel Weight (903L) by Steahly Off Road®. The horsepower king of the 125s needs a little more flywheel to work its best off road. Make the power more controllable and reduce stalling with a Steahly flywheel. Easy to bolt on or take...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
- Steahly Off Road®Flywheel Weight (903)Flywheel Weight (903) by Steahly Off Road®. The horsepower king of the 125s needs a little more flywheel to work its best off road. Make the power more controllable and reduce stalling with a Steahly flywheel. Easy to bolt on or take...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
- Steahly Off Road®Flywheel Weight (901L)Flywheel Weight (901L) by Steahly Off Road®. Flywheel weights are very popular for the 200, which can be too zingy for technical or slippery trails. Two sizes to choose from a 9 ounce for faster-more aggressive riders or a 12 ounce for...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$157.76
- Steahly Off Road®Flywheel Weight (833)Flywheel Weight (833) by Steahly Off Road®. YZ 125 Make your 125 power smoother and easier to control with a Steahly flywheel weight. Soften the hit and make it more chuggable. Most intermediate trail riders will like the 9 ounce, timid...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
- Steahly Off Road®Flywheel Weight (829)Flywheel Weight by Steahly Off Road®. Make your 250F better for slippery conditions and trails. Patented mounting system makes installation and removal easy. No drilling, welding, or grinding. Steahly Off Road recommend adding 7 ounces...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$157.76
- Steahly Off Road®Flywheel Weight (826H)Flywheel Weight (826H) by Steahly Off Road®. YZ 250 Five Star Rating (their highest) in Motocross Action Magazine August 2011."makes each gear pull further, stronger and longer". Make your power as smooth and tractable as Randy Hawkins...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
- Steahly Off Road®Flywheel Weight (819L)Flywheel Weight (819L) by Steahly Off Road®. Adding a flywheel weight is the most cost effective way to make the power easier to control and more predictable. Most intermediate trail riders will like to add 9 ounces. Beginners or timid...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
- Steahly Off Road®Flywheel Weight (819)Flywheel Weight (819) by Steahly Off Road®. Adding a flywheel weight is the most cost effective way to make the power easier to control and more predictable. Most intermediate trail riders will like to add 9 ounces. Beginners or timid...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
- Steahly Off Road®Flywheel Weight (715)Flywheel Weight (715) by Steahly Off Road®. The RM has less flywheel than the other 250 MXers, which can make it stall easily and difficult to control when traction is not perfect. Gain tractability and stall resistance by adding a...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
- Steahly Off Road®Flywheel Weight (609)Flywheel Weight by Steahly Off Road®. The KDX 200 and 220 have more flywheel than most motocross bikes, but many riders want more weight for riding technical trails or to regain tractability after hopping up the motor. Easy to install,...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$157.76
- Steahly Off Road®Flywheel Weight (608)Flywheel Weight by Steahly Off Road®. The Steahly Flywheel will enhance the strong power of the KX 250 engine, making it more tractable and easier to ride. Helpful for all types of riding, whether it's MX, desert or woods. Was used by...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$157.76
- Steahly Off Road®Flywheel Weight (606XL)Flywheel Weight (606XL) by Steahly Off Road®. This easy mod will make it much easier to control the hard hitting power of the little KX. Most woods and trail riders will benefit. All beginner and timid riders will do better with the...Precision-machined from stainless steelBolt-on installation at end of crank no drilling or tapping required$147.92
High jumps, hard impacts, riding in the mud, and sudden and strong acceleration are peculiar to many motocross competitions. However, motocross off-roading is a challenging sport both for the biker and motorcycle, and both are required to be in top shape. The engine is the very core of the two-wheeler. Most motocross and dirt bikes are equipped with two-stroke motors whose simple architecture and outstanding power are perfect to cope with challenging routes successfully. The crankshaft is one of the most crucial components of the engine.
The reciprocating motion of pistons initiated by the combustion process is transferred to the crankshaft via connecting rods and converted into the rotating motion that ultimately pushes the bike forward. The unique shape of the crankshaft is also one of the main reasons for its failure: even a small misalignment can prevent the engine to work properly. Excessive loads, insufficient lubrication, and wear are the main cause of misalignment, while cracks are rare. If you need to replace the crankshaft, we have a large choice of top-notch motocross/dirt bike crankshafts and components including bearings and seals.
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