TB Parts XR/CRF100 120cc Big Bore Replacement Piston kit including Gaskets!  This is the exact same piston kit that comes with our extremely popular 120cc big bore kit. High Compression 58mm replacement piston kit with rings, pin, clips, and a new gasket set for the complete install! We also have this piston kit listed without a gasket kit

Includes Item # TBW0626 & TBW0627