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 Kit CBK0077
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...09210325- SKU:
- 09210325
- Availability:
- Ships Same Business Day
- Weight:
- 8.50 LBS
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT KIT
- UNITS:
- KIT
MSRP: $502.95Now: $452.66Was: $502.95 -
On Sale
HOT RODS Crankshaft Kit CBK0078
HOT RODS
MSRP: $595.95Now: $536.36Was: $595.95Assembly 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...09210326- SKU:
- 09210326
- Availability:
- Ships Same Business Day
- Weight:
- 12.45 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $595.95Now: $536.36Was: $595.95 -
On Sale
HOT RODS Crankshaft Kit CBK0079
HOT RODS
MSRP: $595.95Now: $536.36Was: $595.95Assembly 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...09210327- SKU:
- 09210327
- Availability:
- Ships Same Business Day
- Weight:
- 12.30 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $595.95Now: $536.36Was: $595.95 -
On Sale
HOT RODS Crankshaft Kit CBK0135
HOT RODS
MSRP: $595.95Now: $536.36Was: $595.95Assembly 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...09210367- SKU:
- 09210367
- Availability:
- Ships Same Business Day
- Weight:
- 11.90 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM
- UNITS:
- KIT
MSRP: $595.95Now: $536.36Was: $595.95 -
On Sale
HOT RODS Crankshaft Kit CBK0138
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...09210368- SKU:
- 09210368
- Availability:
- Ships Same Business Day
- Weight:
- 13.20 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STROKER
- UNITS:
- KIT
MSRP: $768.95Now: $692.06Was: $768.95 -
On Sale
HOT RODS Crankshaft Kit CBK0139
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...09210369- SKU:
- 09210369
- Availability:
- Ships Same Business Day
- Weight:
- 10.85 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STROKER
- UNITS:
- KIT
MSRP: $768.95Now: $692.06Was: $768.95 -
On Sale
HOT RODS Crankshaft Kit CBK0141
HOT RODS
MSRP: $874.95Now: $787.46Was: $874.95Assembly 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...09210370- SKU:
- 09210370
- Availability:
- Ships Same Business Day
- Weight:
- 12.75 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $874.95Now: $787.46Was: $874.95Qty in Cart: 0Quantity:Price:MSRP: $874.95Now: $787.46Was: $874.95Subtotal: -
On Sale
HOT RODS Crankshaft Kit CBK0159
HOT RODS
MSRP: $835.95Now: $752.36Was: $835.95Assembly 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...09210381- SKU:
- 09210381
- Availability:
- Ships Same Business Day
- Weight:
- 13.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STROKER
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
MSRP: $835.95Now: $752.36Was: $835.95 -
On Sale
HOT RODS Crankshaft Kit CBK0165
HOT RODS
MSRP: $980.95Now: $882.86Was: $980.95Assembly 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...09210386- SKU:
- 09210386
- Availability:
- Ships Same Business Day
- Weight:
- 13.35 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STROKER
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
MSRP: $980.95Now: $882.86Was: $980.95 -
On Sale
HOT RODS Crankshaft Kit CBK0167
HOT RODS
MSRP: $927.95Now: $835.16Was: $927.95Assembly 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...09210387- SKU:
- 09210387
- Availability:
- Ships Same Business Day
- Weight:
- 10.05 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $927.95Now: $835.16Was: $927.95 -
On Sale
HOT RODS Crankshaft 4021
HOT RODS
MSRP: $515.95Now: $464.36Was: $515.95Sold 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...09210388- SKU:
- 09210388
- Availability:
- Ships Same Business Day
- Weight:
- 7.18 LBS
- COLOR/FINISH:
- STEEL
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 250 CC
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MODEL:
- 4-CYCLE
- STROKE LENGTH METRIC:
- 53.60 MM
- TYPE:
- OEM STROKE
MSRP: $515.95Now: $464.36Was: $515.95 -
On Sale
HOT RODS Crankshaft 4031
HOT RODS
MSRP: $436.95Now: $393.26Was: $436.95Sold 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...09210389- SKU:
- 09210389
- Availability:
- Ships Same Business Day
- Weight:
- 4.06 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH METRIC:
- 40.80 MM
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 65 CC
- FEATURES:
- STANDARD CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM STROKE
- MATERIAL:
- 4140 STEEL
- MODEL:
- 2-CYCLE
MSRP: $436.95Now: $393.26Was: $436.95 -
On Sale
HOT RODS Crankshaft 4098
HOT RODS
MSRP: $502.95Now: $452.66Was: $502.95Sold 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...09210244- SKU:
- 09210244
- Availability:
- Ships Same Business Day
- Weight:
- 9.45 LBS
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
- DISPLACEMENT:
- 450 CC
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 60.80 MM
MSRP: $502.95Now: $452.66Was: $502.95 -
On Sale
HOT RODS Crankshaft - Stroker 4197
HOT RODS
MSRP: $337.95Now: $304.16Was: $337.95Hot Rods has developed six long-stroke applications for ATVs, Special pistons for TRX400EX, KFX/LTZ 400, Banshee, Warrior and Raptor make these installations simple by avoiding machine work and parts typically required for long-stroke engines09210246- SKU:
- 09210246
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STROKER
- DISPLACEMENT:
- 259 CC
- MODEL:
- 4-CYCLE
- STROKE LENGTH:
- 55,80 MM
- STROKE LENGTH METRIC:
- 55.80 MM
- COLOR/FINISH:
- STEEL
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
MSRP: $337.95Now: $304.16Was: $337.95 -
On Sale
HOT RODS Crankshaft Kit CBK0187
HOT RODS
MSRP: $622.95Now: $560.66Was: $622.95Assembly 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...09210504- SKU:
- 09210504
- Availability:
- Ships Same Business Day
- Weight:
- 6.75 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $622.95Now: $560.66Was: $622.95 -
On Sale
HOT RODS Crankshaft Kit CBK0188
HOT RODS
MSRP: $476.95Now: $429.26Was: $476.95Assembly 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...09210505- SKU:
- 09210505
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $476.95Now: $429.26Was: $476.95 -
On Sale
HOT RODS Crankshaft Kit CBK0191
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...09210521- SKU:
- 09210521
- Availability:
- Ships Same Business Day
- Weight:
- 13.40 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- UNITS:
- KIT
MSRP: $768.95Now: $692.06Was: $768.95 -
On Sale
HOT RODS Crankshaft Assembly 4053
HOT RODS
MSRP: $247.95Now: $223.16Was: $247.95Sold 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...09210021- SKU:
- 09210021
- Availability:
- Ships Same Business Day
- Weight:
- 6.22 LBS
- DISPLACEMENT:
- 125 CC
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
- MODEL:
- 2-CYCLE
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.60 MM
MSRP: $247.95Now: $223.16Was: $247.95 -
On Sale
HOT RODS Crankshaft Assembly 4055
HOT RODS
MSRP: $305.95Now: $275.36Was: $305.95Sold 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...09210023- SKU:
- 09210023
- Availability:
- Ships Same Business Day
- Weight:
- 6.36 LBS
- DISPLACEMENT:
- 125 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MODEL:
- 2-CYCLE
- COLOR/FINISH:
- STEEL
- FEATURES:
- STANDARD CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.60 MM
- TYPE:
- OEM STROKE
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
MSRP: $305.95Now: $275.36Was: $305.95 -
On Sale
HOT RODS Crankshaft Assembly - Stroker 4116
HOT RODS
MSRP: $289.95Now: $260.96Was: $289.95Hot Rods has developed six long-stroke applications for ATVs, Special pistons for TRX400EX, KFX/LTZ 400, Banshee, Warrior and Raptor make these installations simple by avoiding machine work and parts typically required for long-stroke engines09210025- SKU:
- 09210025
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH:
- 47,80 MM
- DISPLACEMENT:
- 85 CC TO 100 CC
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- FEATURES:
- STANDARD CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STROKER
- MATERIAL:
- 4140 STEEL
- MODEL:
- 2-CYCLE
- STROKE LENGTH METRIC:
- 47.80 MM
MSRP: $289.95Now: $260.96Was: $289.95
