Most Wiseco 2-stroke pistons are forged from high-silicone bar stockGreater strength and lower expansion at high temperaturesAll 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 pistonsWiseco pistons can be fitted only with Wiseco rings.