Most Wiseco 2-cycle pistons are forged from high-silicone bar stockGreater strength and lower expansion at high temperaturesComplete piston kits include High-Performance forged pistons, rings, wrist pins, circlips and top-end gasket kit for one complete engineAll Wiseco High-Performance pistons are priced with rings, wrist pins and circlipsWiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC) and fit only Wiseco pistonsOversize pistons require cylinder boring