Suzuki OEM 2nd (0.50) over piston12103-19810-050, piston rings12140-01c10-050, and clips 09381-18002. fits 1985 - 1992 LT 250R ( F-G models). 

this does not come with a piston pin but you can order it through Suzuki, part # 12151-13a00-0a0