Product Review

A bolt on 102mm 686cc Big Bore Kit which includes all the parts shown to make a successful installation. Our Kits require no modification when you receive it. It will just slide into your case without hassle. Our Kits include a TRUE 686cc Cylinder with larger water jackets for greater cooling capacity. Don't waste your time re-boring, buy new. You don't want to end up with over heating problems down the road. Includes a brand new 102mm Cylinder, NGK spark plug, 10:1 piston kit & high performance gasket set for an easy installation. Best of all, our kits are ready to install right out of the box. No core Required. Quality, Reliability, and Affordability!