COMPLETE CRANKSHAFT ASSEMBLY

All new assembly sold complete with connecting rod
Factory assembled and trued to OEM specifications, cranks will meet or surpass the OEM in performance
Ready for installation
Crankshaft is completely rebuildable with genuine connecting rods
Stroker crankshaft assembly add 1.5mm to 5mm of stroke depending on application; in some cases cylinder head must be modified or special pistons used (as noted)
All new assembly sold complete with connecting rod.
Factory assembled and trued to OEM specifications, cranks will meet or surpass the OEM in performance.
Ready for installation.
Crankshaft is completely rebuildable with genuine connecting rods.
Stroker crankshaft assembly add 1.5mm to 5mm of stroke depending on application; in some cases cylinder head must be modified or special pistons used (as noted).
Main bearings not included.
Uses stock piston..
When using Cylinder Works #21003-k01 makes 500cc.
This item fits the following vehicle applications:
for Yamaha YZ450F 2006-2009