This is a brand new and never used .50 mm over piston for a vintage Suzuki TC120 Trail Cat from 1969-1972. The part is made by Suzuki themselves with the manufacturer part number 12110-20720. It is a great addition for anyone looking to restore their vintage Suzuki motorcycle to its original condition. This part is a must-have for any collector or enthusiast who wants to keep their bike running smoothly and looking great.BOX19