This is a high-quality standard piston and piston ring for a Suzuki motorcycle. It is an original equipment manufacturer (OEM) part and is made by Suzuki. The part brand is also Suzuki. The manufacturer part number is 12110-41101 /41102. This vintage part is suitable for a 1976 RM250 motorcycle. It is a great addition to your collection or a perfect replacement for your motorcycle.BX47/48