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
-
WSM Crankshaft Assembly 010-1060WSM
WSM
$764.06Complete crankshaft assembly with connecting rod, Will meet or exceed OEM performance, Trued to OEM specifications, Multi-cylinder applications include main bearings, Rebuildable, Ready for installation09210485- SKU:
- 09210485
- Availability:
- Ships Same Business Day
- Weight:
- 24.10 LBS
- PRODUCT NAME:
- CRANKSHAFT
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- STEEL
- UNITS:
- EACH
$764.06 -
WSM Crankshaft Assembly 010-1026WSM
WSM
$810.90Complete crankshaft assembly with connecting rod, Will meet or exceed OEM performance, Trued to OEM specifications, Multi-cylinder applications include main bearings, Rebuildable, Ready for installation09210231- SKU:
- 09210231
- Availability:
- Ships Same Business Day
- Weight:
- 31.16 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- STEEL
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
$810.90 -
WSM Crankshaft Assembly 010-1017WSM
WSM
$708.90Complete crankshaft assembly with connecting rod, Will meet or exceed OEM performance, Trued to OEM specifications, Multi-cylinder applications include main bearings, Rebuildable, Ready for installation09210224- SKU:
- 09210224
- Availability:
- Ships Same Business Day
- Weight:
- 20.95 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- STEEL
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
$708.90 -
WSM Crankshaft Assembly 010-1018WSM
WSM
$810.90Complete crankshaft assembly with connecting rod, Will meet or exceed OEM performance, Trued to OEM specifications, Multi-cylinder applications include main bearings, Rebuildable, Ready for installation09210225- SKU:
- 09210225
- Availability:
- Ships Same Business Day
- Weight:
- 25.20 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- STEEL
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
$810.90 -
WSM Crankshaft Assembly 010-1019WSM
WSM
$810.90Complete crankshaft assembly with connecting rod, Will meet or exceed OEM performance, Trued to OEM specifications, Multi-cylinder applications include main bearings, Rebuildable, Ready for installation09210227- SKU:
- 09210227
- Availability:
- Ships Same Business Day
- Weight:
- 27.55 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- UNITS:
- KIT
$810.90 -
HOT RODS Crankshaft - OEM Stroke - Can-Am HR00063
HOT RODS
$251.95Crankshaft - OEM Stroke - Can-Am Factory trued and balanced, OEM crankshaft replacement, Crankshaft only, connecting rods sold separately09210885- SKU:
- 09210885
- Availability:
- Ships Same Business Day
- Weight:
- 13.35 LBS
$251.95Qty in Cart: 0Quantity:Price:$251.95Subtotal: -
HOT RODS Bottom End Kit - OE Crankshaft Replacement - Polaris HR00119
HOT RODS
$1,473.95Bottom End Kit - OE Crankshaft Replacement - Polaris Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete...09210898- SKU:
- 09210898
- Availability:
- Ships Same Business Day
- Weight:
- 24.35 LBS
$1,473.95Qty in Cart: 0Quantity:Price:$1,473.95Subtotal: -
Wossner Crankshaft Assembly for KTM 85 SX 2014-2017 Husqvarna TC85 2014-2017 CS2065-1
WOSSNER
$342.00Enhance the performance of your Husqvarna or KTM engine with our premium Crankshaft Assembly. This assembly includes a high-quality crankshaft, connecting rod, and top end bearing, ensuring reliable operation and longevity. Designed as a standard...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
$262.00Upgrade your Yamaha engine with our high-quality Crankshaft Assembly, designed for optimal performance and reliability. This complete assembly includes a precision-engineered crankshaft, connecting rod, and top end bearing, ensuring a seamless fit for...09210917- SKU:
- 09210917
- Availability:
- Ships Same Business Day
- Weight:
- 4.06 LBS
$262.00Qty in Cart: 0Quantity:Price:$262.00Subtotal: -
Wossner Crankshaft Assembly Yamaha YZ250F 2003-2013 CS4005
WOSSNER
$404.00Upgrade your Yamaha's performance with our premium Crankshaft Assembly, designed for optimal engine efficiency and durability. This assembly includes a high-quality crankshaft and connecting rod, along with a top-end bushing, ensuring a seamless fit and...09210919- SKU:
- 09210919
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$404.00Qty in Cart: 0Quantity:Price:$404.00Subtotal: -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1008
MOOSE RACING
$83.95Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines, 4-stroke crank bearings do not include sealsA241008- SKU:
- A241008
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- CRANK
$83.95Qty in Cart: 0Quantity:Price:$83.95Subtotal: -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1027
MOOSE RACING
$89.95Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines, 4-stroke crank bearings do not include sealsA241027- SKU:
- A241027
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$89.95Qty in Cart: 0Quantity:Price:$89.95Subtotal: -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1009
MOOSE RACING
$93.95Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines, 4-stroke crank bearings do not include sealsA241009- SKU:
- A241009
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$93.95Qty in Cart: 0Quantity:Price:$93.95Subtotal: -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1014
MOOSE RACING
$69.95Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines, 4-stroke crank bearings do not include sealsA241014- SKU:
- A241014
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- TYPE:
- CRANK
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1015
MOOSE RACING
$72.95Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines, 4-stroke crank bearings do not include sealsA241015- 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
$53.95Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines, 4-stroke crank bearings do not include sealsA241023- 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
$77.95Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines, 4-stroke crank bearings do not include sealsA241003- 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: -
ATHENA Crankshaft - Yamaha/Malaguti S410130320005
ATHENA
$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
$221.95Qty in Cart: 0Quantity:Price:$221.95Subtotal: -
HOT RODS Crankshaft Kit CBK0008
HOT RODS
$662.95Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely rebuildable with genuine Hot Rods...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
$594.95Experience unparalleled performance with the WISECO Crankshaft, expertly crafted for superior reliability and efficiency. This comprehensive kit includes a top-end bearing, premium main bearings, and a complete bottom-end gasket set, ensuring you have...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:
