Crankshaft Assembly 4259

Stroker Crankshaft

Factory assembled and trued to OEM specifications

Drop in replacement crankshaft requires no modification unless noted

CNC machined and dynamically balanced to suit the increased stroke

Add +2.00 mm to +4.00 mm of stroke depending on application

Uses stock piston unless noted

Main bearings not included

Can be matched with Cylinder Works Big Bore cylinders to get significant displacement and horsepower gains

Not re-buildable as the rods are shorter than OEM.

Connecting rod side clearance 0.35 mm - 0.55 mm. +4.00 mm stroke increase makes 424 cc. When using Cylinder Works big bore cylinder kit it will make 462 cc. Uses stock piston. Does not fit kickstart applications.