TOP PERFORMANCES aluminum cylinder head for TOP PERFORMANCES cast iron 50cc DERBI euro 3 & 4 kit

Here is the TOP PERFORMANCES aluminum stud bolt for 50cc TOP PERFORMANCS cast iron kit on mécaboites DERBI euro 3 and euro 4. Good quality and molded in resistant aluminum alloys, this stud bolt is a unique replacement solution for your cylinder bore 39.885mm. It has a high compression hemispherical combustion chamber, polished finish. Delivered as presented.