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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On Sale
HOT RODS Crankshaft 4061
HOT RODS
MSRP: $901.95Now: $811.76Was: $901.95Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for installation, Completely...09210037- SKU:
- 09210037
- Availability:
- Ships Same Business Day
- Weight:
- 21.89 LBS
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
- MATERIAL:
- 4140 STEEL
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 743 CC TO 781 CC
- MODEL:
- 2-CYCLE
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- COLOR/FINISH:
- STEEL
- STROKE LENGTH METRIC:
- 37.00 MM
MSRP: $901.95Now: $811.76Was: $901.95 -
On Sale
HOT RODS Crankshaft Kit CBK0053
HOT RODS
MSRP: $423.95Now: $381.56Was: $423.95Assembly 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...09210301- SKU:
- 09210301
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $423.95Now: $381.56Was: $423.95 -
On Sale
HOT RODS Crankshaft Kit CBK0002
HOT RODS
MSRP: $397.95Now: $358.16Was: $397.95Assembly 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...09210261- SKU:
- 09210261
- Availability:
- Ships Same Business Day
- Weight:
- 6.65 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $397.95Now: $358.16Was: $397.95 -
Wiseco Crankshaft Kit Yamaha YZ125 2005-2021 WPC163
WISECO
$384.95The WISECO Crankshaft WPC163 offers a comprehensive solution for your engine needs, combining precision engineering with top-quality materials. This all-in-one kit includes everything necessary for a seamless installation, ensuring optimal performance...09210549- SKU:
- 09210549
- Availability:
- Ships Same Business Day
- Weight:
- 7.95 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.50 MM
$384.95 -
Wiseco Crankshaft Kit Kawasaki KX85 2006-2013 WPC164
WISECO
$344.95Upgrade your engine's performance with the WISECO Crankshaft WPC164, designed for precision and durability. This all-in-one kit includes everything you need for a complete overhaul, ensuring optimal functionality and reliability for your machine. ...09210550- SKU:
- 09210550
- Availability:
- Ships Same Business Day
- Weight:
- 6.25 LBS
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 45.80 MM
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
$344.95 -
Wiseco Crankshaft Kit 2003-2004 Suzuki RM250 WPC165A
WISECO
$479.95Upgrade your engine's performance with the WISECO Crankshaft WPC165A. This comprehensive crankshaft kit comes fully assembled to OEM specifications, ensuring precision and reliability. Designed with advanced engineering, it delivers superior strength and...09210551- SKU:
- 09210551
- Availability:
- Ships Same Business Day
- Weight:
- 12.80 LBS
- STROKE LENGTH METRIC:
- 72.00 MM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$479.95 -
Wiseco Suzuki RM85 2002-2020 Crankshaft WPC166
WISECO
$364.95Experience unmatched performance with the WISECO Crankshaft WPC166, designed for precision and durability. This comprehensive crankshaft kit ensures a seamless installation, providing everything you need for a reliable engine rebuild. Complete kit...09210553- SKU:
- 09210553
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- STROKE LENGTH METRIC:
- 46.80 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$364.95 -
On Sale
HOT RODS Crankshaft Kit CBK0175
HOT RODS
MSRP: $716.95Now: $645.26Was: $716.95Assembly 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...09210481- SKU:
- 09210481
- Availability:
- Ships Same Business Day
- Weight:
- 13.45 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $716.95Now: $645.26Was: $716.95 -
On Sale
HOT RODS Crankshaft Kit CBK0176
HOT RODS
MSRP: $768.95Now: $692.06Was: $768.95Assembly 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...09210482- SKU:
- 09210482
- Availability:
- Ships Same Business Day
- Weight:
- 13.50 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STROKER
- UNITS:
- KIT
MSRP: $768.95Now: $692.06Was: $768.95 -
On Sale
HOT RODS Bottom End Kit CBK0171
HOT RODS
MSRP: $835.95Now: $752.36Was: $835.95Kit 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 engine rebuild, "Stroker Kits" crankshaft assemblies...09210581- SKU:
- 09210581
- Availability:
- Ships Same Business Day
- Weight:
- 13.55 LBS
- MATERIAL:
- 4140 STEEL
- UNITS:
- KIT
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- 4-CYCLE
- TYPE:
- OE REPLACEMENT
- PRODUCT NAME:
- BOTTOM END KIT
- STROKE LENGTH METRIC:
- STANDARD
MSRP: $835.95Now: $752.36Was: $835.95 -
On Sale
HOT RODS Bottom End Kit CBK0172
HOT RODS
MSRP: $741.95Now: $667.76Was: $741.95Kit 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 engine rebuild, "Stroker Kits" crankshaft assemblies...09210582- SKU:
- 09210582
- Availability:
- Ships Same Business Day
- Weight:
- 11.05 LBS
- MATERIAL:
- 4140 STEEL
- MODEL:
- 4-CYCLE
- STROKE LENGTH METRIC:
- STANDARD
- TYPE:
- OE REPLACEMENT
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BOTTOM END KIT
MSRP: $741.95Now: $667.76Was: $741.95 -
On Sale
HOT RODS Bottom End Kit CBK0194
HOT RODS
MSRP: $595.95Now: $536.36Was: $595.95Kit 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 engine rebuild, "Stroker Kits" crankshaft assemblies...09210585- SKU:
- 09210585
- Availability:
- Ships Same Business Day
- Weight:
- 10.35 LBS
- MODEL:
- 4-CYCLE
- UNITS:
- KIT
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- STANDARD
- COLOR/FINISH:
- STEEL
- PRODUCT NAME:
- BOTTOM END KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OE REPLACEMENT
MSRP: $595.95Now: $536.36Was: $595.95 -
On Sale
HOT RODS Crankshaft Kit CBK0003
HOT RODS
MSRP: $768.95Now: $692.06Was: $768.95Assembly 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...09210262- SKU:
- 09210262
- Availability:
- Ships Same Business Day
- Weight:
- 9.80 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $768.95Now: $692.06Was: $768.95 -
On Sale
HOT RODS Crankshaft Kit CBK0005
HOT RODS
MSRP: $768.95Now: $692.06Was: $768.95Assembly 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...09210264- SKU:
- 09210264
- Availability:
- Ships Same Business Day
- Weight:
- 12.30 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $768.95Now: $692.06Was: $768.95 -
On Sale
HOT RODS Crankshaft Kit CBK0084
HOT RODS
MSRP: $716.95Now: $645.26Was: $716.95Assembly 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...09210329- SKU:
- 09210329
- Availability:
- Ships Same Business Day
- Weight:
- 10.00 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM
- UNITS:
- KIT
MSRP: $716.95Now: $645.26Was: $716.95Qty in Cart: 0Quantity:Price:MSRP: $716.95Now: $645.26Was: $716.95Subtotal: -
On Sale
HOT RODS Crankshaft Kit CBK0085
HOT RODS
MSRP: $502.95Now: $452.66Was: $502.95Assembly 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...09210330- SKU:
- 09210330
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $502.95Now: $452.66Was: $502.95 -
On Sale
HOT RODS Crankshaft Kit CBK0086
HOT RODS
MSRP: $716.95Now: $645.26Was: $716.95Assembly 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...09210331- SKU:
- 09210331
- Availability:
- Ships Same Business Day
- Weight:
- 13.30 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM
- UNITS:
- KIT
MSRP: $716.95Now: $645.26Was: $716.95 -
On Sale
HOT RODS Crankshaft Kit CBK0087
HOT RODS
MSRP: $716.95Now: $645.26Was: $716.95Assembly 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...09210332- SKU:
- 09210332
- Availability:
- Ships Same Business Day
- Weight:
- 10.51 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM
- UNITS:
- KIT
MSRP: $716.95Now: $645.26Was: $716.95 -
On Sale
HOT RODS Crankshaft Kit CBK0088
HOT RODS
MSRP: $768.95Now: $692.06Was: $768.95Assembly 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...09210333- SKU:
- 09210333
- Availability:
- Ships Same Business Day
- Weight:
- 12.25 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $768.95Now: $692.06Was: $768.95 -
On Sale
HOT RODS Crankshaft Kit CBK0089
HOT RODS
MSRP: $370.95Now: $333.86Was: $370.95Assembly 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...09210334- SKU:
- 09210334
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $370.95Now: $333.86Was: $370.95
