Dirt Bike Crankshafts and Parts
Dirt Bike Crankshafts & Bottom End Rebuild Kits for KTM, Husqvarna, Gas Gas & Suzuki at JJ Motorsports
Rebuild your dirt bike's bottom end with premium crankshaft assemblies and complete kits from JJ Motorsports, precision-engineered for perfect balance, maximum strength, and race-proven reliability in motocross, enduro, and trail riding. Our selection includes OEM-spec Hot Rods crankshafts and full Wossner crankshaft assemblies with rods, bearings, and seals for leak-free operation and extended engine life under extreme RPM and load. Compatible with KTM SX/EXC, Husqvarna FC/FE, Gas Gas MC/EC, and Suzuki RM-Z models, these high-quality components ensure smoother power delivery, reduced vibration, and championship-level durability in dusty, high-stress conditions. Whether refreshing a tired motor or building a stroker, Hot Rods and Wossner deliver exact OEM stroke, balanced cranks, and bolt-in fitment, and unmatched performance for 250-450cc 2-stroke and 4-stroke engines.
At JJ Motorsports, we stock the best dirt bike crankshafts and bottom-end kits from Hot Rods and Wossner with fast shipping and expert support. Free shipping over $99!
Top Dirt Bike Crankshafts & Bottom End Kits
- Wossner Crankshaft Assembly Gas Gas/Husqvarna/KTM CS2070 – Premium forged crankshaft assembly for Gas Gas, Husqvarna, and KTM 250/300 models; perfectly balanced for high-RPM reliability and smooth power.
- Wossner Crankshaft Assembly Husaberg/Husqvarna/KTM CS2012 – High-performance crankshaft for older Husaberg and current Husqvarna/KTM platforms; engineered for extreme durability and precise fit.
- Hot Rods OE Crankshaft Replacement Kit Suzuki CBK0081 – Complete OEM-spec crankshaft assembly for Suzuki RM-Z models; includes balanced crank, rod, bearings, and seals for factory performance and easy installation.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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WSM Crankshaft Assembly 010-1060WSM
WSM
$802.26A crankshaft assembly is the backbone of your engine's bottom end—it converts reciprocating piston motion into rotational power, making its precision and durability absolutely critical to engine performance and longevity. The WSM 010-1060WSM is...09210485- SKU:
- 09210485
- Availability:
- Ships Same Business Day
- Weight:
- 24.10 LBS
- PRODUCT NAME:
- CRANKSHAFT
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- STEEL
- UNITS:
- EACH
$802.26 -
WSM Crankshaft Assembly 010-1026WSM
WSM
$851.45A reliable crankshaft assembly is the foundation of engine durability and consistent performance—especially under high RPM and load conditions. The WSM Crankshaft Assembly 010-1026WSM delivers OEM-equivalent specifications with precision engineering,...09210231- SKU:
- 09210231
- Availability:
- Ships Same Business Day
- Weight:
- 31.16 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- STEEL
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
$851.45 -
WSM Crankshaft Assembly 010-1017WSM
WSM
$744.35A crankshaft assembly is the backbone of your engine's power delivery—any imbalance or wear directly compromises efficiency, reliability, and performance. The WSM 010-1017WSM is precision-manufactured to OEM specifications and ready for immediate...09210224- SKU:
- 09210224
- Availability:
- Ships Same Business Day
- Weight:
- 20.95 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- STEEL
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
$744.35 -
WSM Crankshaft Assembly 010-1018WSM
WSM
$851.45A reliable crankshaft is the foundation of any solid engine build—it directly impacts power delivery, longevity, and overall drivetrain stability. The WSM 010-1018WSM is engineered to meet or exceed OEM specifications, making it an ideal choice for...09210225- SKU:
- 09210225
- Availability:
- Ships Same Business Day
- Weight:
- 25.20 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- STEEL
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
$851.45 -
WSM Crankshaft Assembly 010-1019WSM
WSM
$851.45A crankshaft assembly is the heart of your engine's reliability and power delivery—any imbalance or wear translates directly to performance loss and catastrophic failure. The WSM 010-1019WSM is manufactured to OEM specifications and precision-trued to...09210227- SKU:
- 09210227
- Availability:
- Ships Same Business Day
- Weight:
- 27.56 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- UNITS:
- KIT
$851.45 -
HOT RODS Crankshaft - OEM Stroke - Can-Am HR00063
HOT RODS
$592.95When your Can-Am crankshaft shows signs of wear or damage, a factory-trued replacement ensures you're back to OEM performance standards without compromise. This HOT RODS crankshaft maintains the original stroke specification, preserving your engine's...09210885- SKU:
- 09210885
- Availability:
- Ships Same Business Day
- Weight:
- 13.35 LBS
$592.95 -
HOT RODS Bottom End Kit - OE Crankshaft Replacement - Polaris HR00119
HOT RODS
$1,591.95A bottom-end rebuild demands precision components that won't compromise engine reliability or performance. This HOT RODS kit eliminates the guesswork by bundling OE-spec crankshaft replacement parts with premium main bearings and a complete gasket set,...09210898- SKU:
- 09210898
- Availability:
- Ships Same Business Day
- Weight:
- 24.35 LBS
$1,591.95 -
Wossner Crankshaft Assembly for KTM 85 SX 2014-2017 Husqvarna TC85 2014-2017 CS2065-1
WOSSNER
$342.00A worn or damaged crankshaft directly impacts engine reliability, power delivery, and longevity—especially in high-RPM small-displacement engines like the KTM 85 SX and Husqvarna TC85. This complete Wossner assembly restores full bottom-end integrity...09210914- SKU:
- 09210914
- Availability:
- Ships Same Business Day
- Weight:
- 4.48 LBS
$342.00Qty in Cart: 0Quantity:Price:$342.00Subtotal: -
Wossner Crankshaft Assembly Yamaha YZ85 2019-2025 CS2072
WOSSNER
$262.00Your YZ85's crankshaft assembly is the heartbeat of engine performance—when it's worn or damaged, you lose power delivery, reliability, and overall rideability. The Wossner CS2072 restores your machine to factory specifications with a complete,...09210917- SKU:
- 09210917
- Availability:
- Ships Same Business Day
- Weight:
- 4.06 LBS
$262.00 -
Wossner Crankshaft Assembly Yamaha YZ250F 2003-2013 CS4005
WOSSNER
$404.00The crankshaft assembly is the heart of your YZ250F's engine—worn or damaged components here directly translate to lost power, increased friction, and premature failure. This Wossner assembly replaces the entire rotating assembly with...09210919- SKU:
- 09210919
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$404.00 -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1008
MOOSE RACING
$83.95A crankshaft bearing failure doesn't just sideline your engine—it can cause catastrophic internal damage that ends a season or a rebuild investment. The MOOSE RACING 24-1008 kit delivers OEM-quality precision bearings with engineered seals that protect...A241008- SKU:
- A241008
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- CRANK
$83.95 -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1027
MOOSE RACING
$89.95A worn crankshaft bearing or degraded seal can introduce metal-to-metal contact, excessive drag, and catastrophic engine failure—especially critical in high-RPM 2-stroke applications. The MOOSE RACING 24-1027 kit delivers precision-matched bearings with...A241027- SKU:
- A241027
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$89.95 -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1009
MOOSE RACING
$93.95A worn crankshaft bearing or degraded seal will accelerate internal engine wear and compromise power delivery—especially critical for 2-stroke engines where lubrication tolerance is razor-thin. The MOOSE RACING Crankcase Bearing and Seal Kit 24-1009...A241009- SKU:
- A241009
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$93.95 -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1014
MOOSE RACING
$69.95Your crankshaft bearings are the foundation of engine reliability—worn or inadequate bearings lead to excessive play, bearing knock, and catastrophic engine failure. The MOOSE RACING Crankcase Bearing and Seal Kit 24-1014 delivers precision-engineered...A241014- SKU:
- A241014
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$69.95 -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1015
MOOSE RACING
$72.95A worn or damaged crankshaft bearing will quickly cascade into catastrophic engine failure—seized cranks, metal debris in your oil, and a destroyed bottom end. The MOOSE RACING 24-1015 kit gives you OEM-quality precision bearings engineered to tight...A241015- SKU:
- A241015
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$72.95Qty in Cart: 0Quantity:Price:$72.95Subtotal: -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1023
MOOSE RACING
$53.95A worn or failing crankshaft bearing assembly forces your engine to work harder, accelerates wear on adjacent components, and ultimately compromises reliability when you need it most. The MOOSE RACING Crankcase Bearing and Seal Kit 24-1023 delivers...A241023- SKU:
- A241023
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING KIT
- TYPE:
- CRANK
$53.95Qty in Cart: 0Quantity:Price:$53.95Subtotal: -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1003
MOOSE RACING
$77.95A worn or damaged crankshaft bearing is a ticking time bomb for engine reliability. The MOOSE RACING Crankcase Bearing and Seal Kit 24-1003 delivers OEM-quality precision bearings engineered to restore proper crankshaft clearances and eliminate excess...A241003- SKU:
- A241003
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- UNITS:
- KIT
$77.95Qty in Cart: 0Quantity:Price:$77.95Subtotal: -
On Sale
ATHENA Crankshaft - Yamaha/Malaguti S410130320005
ATHENA
MSRP: $221.95Now: $200.00Was: $221.95Made of special steel and manufactured with CNC high-precision machinery, Standard stroke09210020- SKU:
- 09210020
- Availability:
- Ships Same Business Day
- Weight:
- 2.84 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CRANKSHAFT
- UNITS:
- EACH
MSRP: $221.95Now: $200.00Was: $221.95Qty in Cart: 0Quantity:Price:MSRP: $221.95Now: $200.00Was: $221.95Subtotal: -
HOT RODS Crankshaft Kit CBK0008
HOT RODS
$662.95If you're building a high-performance engine or need a reliable crankshaft assembly that meets or exceeds OEM specifications, the HOT RODS Crankshaft Kit CBK0008 delivers the precision and durability required for serious racing and modified applications...09210267- SKU:
- 09210267
- Availability:
- Ships Same Business Day
- Weight:
- 12.80 LBS
- TYPE:
- OEM
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
$662.95Qty in Cart: 0Quantity:Price:$662.95Subtotal: -
Wiseco Crankshaft Kit for 2005-2007 Suzuki RM-Z450 WPC142
WISECO
$594.95A crankshaft is the backbone of your engine's reliability and performance—especially when pushing an RM-Z450 to its limits. Wiseco's factory-assembled kit delivers precision-engineered components that meet OEM specifications while handling the demands of...09210139- SKU:
- 09210139
- Availability:
- Ships Same Business Day
- Weight:
- 13.54 LBS
- FEATURES:
- INCLUDES BEARING AND GASKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 62.80 MM
- TYPE:
- BOTTOM END
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- UNITS:
- KIT
$594.95Qty in Cart: 0Quantity:Price:$594.95Subtotal:
