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
-
HOT RODS Bottom End Kit CBK0202
HOT RODS
$531.95A complete bottom-end rebuild demands precision parts and a seamless installation process—this kit eliminates the guesswork by bundling everything you need in one package. Whether you're stroking an engine or performing a standard crankshaft...09210536- SKU:
- 09210536
- Availability:
- Ships Same Business Day
- Weight:
- 4.65 LBS
- MODEL:
- 2-CYCLE
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- STANDARD
- PRODUCT NAME:
- BOTTOM END KIT
- UNITS:
- KIT
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OE REPLACEMENT
$531.95 -
HOT RODS Bottom End Kit CBK0203
HOT RODS
$476.95A complete crankshaft installation demands precision components and comprehensive gasket coverage—this kit eliminates the guesswork by bundling everything you need in one package. Whether you're running a stroker assembly or standard bottom end, having...09210537- SKU:
- 09210537
- Availability:
- Ships Same Business Day
- Weight:
- 7.10 LBS
- MODEL:
- 2-CYCLE
- COLOR/FINISH:
- STEEL
- UNITS:
- KIT
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- STANDARD
- TYPE:
- OE REPLACEMENT
- PRODUCT NAME:
- BOTTOM END KIT
- RIDING STYLE:
- OFF-ROAD
$476.95 -
HOT RODS Crankshaft Kit CBK0010
HOT RODS
$716.95If you're building a high-performance engine or restoring a machine that demands reliability and power, the HOT RODS Crankshaft Kit CBK0010 delivers factory-matched precision with the durability to handle sustained abuse. This complete assembly arrives...09210269- SKU:
- 09210269
- Availability:
- Ships Same Business Day
- Weight:
- 13.30 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$716.95 -
HOT RODS Crankshaft Kit CBK0011
HOT RODS
$716.95If you're building a high-performance engine or pushing your existing platform beyond factory limits, the HOT RODS Crankshaft Kit CBK0011 delivers the reliability and precision you need. This factory-assembled crankshaft meets or exceeds OEM...09210270- SKU:
- 09210270
- Availability:
- Ships Same Business Day
- Weight:
- 13.05 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM
$716.95 -
HOT RODS Crankshaft Kit CBK0012
HOT RODS
$595.95If you're building a high-performance engine or restoring a classic with modern reliability in mind, the HOT RODS Crankshaft Kit CBK0012 delivers factory-matched precision with the durability to handle aggressive tuning. This complete assembly arrives...09210271- SKU:
- 09210271
- Availability:
- Ships Same Business Day
- Weight:
- 14.62 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$595.95 -
HOT RODS Crankshaft Kit CBK0040
HOT RODS
$569.95If you're building a high-performance engine or restoring a classic, the HOT RODS Crankshaft Kit CBK0040 delivers the reliability and precision you need without compromise. Factory-assembled and true to OEM specifications, this complete crankshaft...09210292- SKU:
- 09210292
- Availability:
- Ships Same Business Day
- Weight:
- 12.23 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$569.95 -
HOT RODS Crankshaft Kit CBK0045
HOT RODS
$278.95If you're building a high-performance engine or restoring a classic with modern reliability in mind, the HOT RODS Crankshaft Kit CBK0045 delivers factory-matched precision without the factory limitations. This complete assembly arrives ready to...09210293- SKU:
- 09210293
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- TYPE:
- OEM
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
$278.95 -
HOT RODS Crankshaft Kit CBK0047
HOT RODS
$305.95If you're building a high-performance engine or restoring a classic with serious power goals, the HOT RODS Crankshaft Kit CBK0047 delivers the reliability and performance of a factory-spec component without compromise. This complete assembly arrives...09210295- SKU:
- 09210295
- Availability:
- Ships Same Business Day
- Weight:
- 6.95 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$305.95 -
HOT RODS Crankshaft Kit CBK0048
HOT RODS
$397.95If you're building a high-performance engine or need to restore a worn crankshaft assembly, the HOT RODS Crankshaft Kit CBK0048 delivers the reliability and precision you expect from a factory-assembled component. This complete kit arrives ready for...09210296- SKU:
- 09210296
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- OEM
$397.95 -
HOT RODS Crankshaft Kit CBK0049
HOT RODS
$370.95If you're building a high-performance engine that demands reliability and power, the HOT RODS Crankshaft Kit CBK0049 delivers factory-matched precision without compromise. This complete assembly arrives pre-assembled and true to OEM specifications,...09210297- SKU:
- 09210297
- Availability:
- Ships Same Business Day
- Weight:
- 6.35 LBS
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$370.95 -
HOT RODS Crankshaft Kit CBK0050
HOT RODS
$370.95If you're building a high-performance engine or refreshing a tired bottom end, the HOT RODS Crankshaft Kit CBK0050 delivers factory-matched precision without the OEM price tag. This complete assembly arrives factory-assembled and true to specification,...09210298- SKU:
- 09210298
- Availability:
- Ships Same Business Day
- Weight:
- 6.65 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$370.95 -
HOT RODS Crankshaft Kit CBK0052
HOT RODS
$397.95If you're building a high-performance engine or restoring a classic with serious power goals, the HOT RODS Crankshaft Kit CBK0052 delivers the durability and precision you need to handle increased displacement and rpm loads. Factory-assembled and tested...09210300- SKU:
- 09210300
- Availability:
- Ships Same Business Day
- Weight:
- 6.65 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- OEM
$397.95 -
HOT RODS Crankshaft Kit CBK0055
HOT RODS
$662.95If you're building a high-performance engine or restoring a classic, a quality crankshaft assembly is non-negotiable—it's the backbone of reliable power delivery and durability under load. The HOT RODS Crankshaft Kit CBK0055 arrives factory-assembled and...09210303- SKU:
- 09210303
- Availability:
- Ships Same Business Day
- Weight:
- 12.30 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$662.95 -
HOT RODS Crankshaft Kit CBK0056
HOT RODS
$662.95If you're building a high-performance engine or refreshing a worn bottom end, the HOT RODS Crankshaft Kit CBK0056 delivers the reliability and precision you need for sustained power delivery. Factory-assembled and true to OEM specifications, this...09210304- SKU:
- 09210304
- Availability:
- Ships Same Business Day
- Weight:
- 12.20 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- OEM
$662.95Qty in Cart: 0Quantity:Price:$662.95Subtotal: -
HOT RODS Crankshaft Kit CBK0061
HOT RODS
$835.95If you're building a high-performance engine or restoring a classic with serious power goals, a quality crankshaft assembly is non-negotiable. The HOT RODS CBK0061 kit delivers factory-spec precision with the durability to handle aggressive racing...09210309- SKU:
- 09210309
- Availability:
- Ships Same Business Day
- Weight:
- 10.15 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$835.95 -
HOT RODS Crankshaft Kit CBK0063
HOT RODS
$768.95If you're building a high-performance engine or restoring a classic with serious power in mind, the HOT RODS Crankshaft Kit CBK0063 delivers the durability and precision you need to survive aggressive driving conditions. This factory-assembled unit meets...09210311- SKU:
- 09210311
- Availability:
- Ships Same Business Day
- Weight:
- 9.80 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$768.95 -
HOT RODS Crankshaft Kit CBK0071
HOT RODS
$927.95The HOT RODS Crankshaft Kit CBK0071 delivers factory-matched performance in a complete, ready-to-install assembly—eliminating the guesswork of sourcing individual components and risking compatibility issues. Built to meet or exceed OEM specifications,...09210319- SKU:
- 09210319
- Availability:
- Ships Same Business Day
- Weight:
- 10.41 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$927.95 -
HOT RODS Crankshaft Kit CBK0072
HOT RODS
$595.95If you're building a high-displacement engine or restoring a classic with modern performance expectations, the HOT RODS Crankshaft Kit CBK0072 delivers the durability and precision needed to handle sustained power. This factory-assembled complete...09210320- SKU:
- 09210320
- Availability:
- Ships Same Business Day
- Weight:
- 15.30 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$595.95Qty in Cart: 0Quantity:Price:$595.95Subtotal: -
HOT RODS Crankshaft Kit CBK0073
HOT RODS
$622.95A stroker crankshaft assembly fundamentally increases your engine's displacement and torque output, delivering the bottom-end power gains serious builders demand. The HOT RODS CBK0073 arrives factory-assembled to OEM specifications and ready for...09210321- SKU:
- 09210321
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- TYPE:
- OEM
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
$622.95 -
HOT RODS Crankshaft Kit CBK0074
HOT RODS
$622.95If you're building a high-performance engine or restoring a race-proven platform, the HOT RODS Crankshaft Kit CBK0074 delivers the reliability and precision you need to maximize displacement and power output. Factory-assembled and validated to meet or...09210322- SKU:
- 09210322
- Availability:
- Ships Same Business Day
- Weight:
- 9.45 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$622.95
