CRANKSHAFT YFZ450

Crankshaft Assembly

Sold complete with the original proven Hot Rods connecting rods, top-end bearings (unless otherwise noted) and crankshaft webs

Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability

Complete and ready for installation

Completely rebuildable with genuine Hot Rods connecting rods and bearings (unless otherwise noted)

Gears are made at a quality level of DIN class 9 or higher

Heavy duty for '04-'05 with a +1.40 mm stroke increase makes into 450 cc. Heavy duty for '06-'08 with standard stroke. When using Cylinder Works #21001-K01 makes into 478 cc Uses stock piston. Does not fit fuel injected R or X models. Connecting rod side clearance is 0.20 mm - 0.55 mm.