Wiseco 4820M09600 96.00mm 12:1 Compression 449cc Motorcycle Piston Kit Wiseco's forged pistons are tougher and more durable than cast pistons, and will stand up to the abuse that high performance motorsport applications require Piston kits contain one piston, rings, piston pin and piston pin circlips Domed 4 valve piston with moly-coated skirts 9600ZV ring set 449cc