Evolution high-tech crankshaft for motorcycles using a Derbi D50B0/1 50cc 2-stroke engine.

This is Jasil high end crankshaft, it features improved strength steel full circle webs with 4 weight reducing inserts and completed with a sand blasted finish. The "chubbier" shaped conrod helps to efficiently transfer all that power. Also both bearings can deal with high RPM and are kept lubricated. 

Ideal for mid-race and race cylinders.

Supplied with small end bearing 12x17x15.

*Made in Portugal.

Jasil 6037102