Top End & Piston CERAMIC COMP CYL 67.96/+0.02 11:1 Yamaha YZ250 1992-1994

Will Not Accept Oem Rings And Rings Will Not Work On Oem Piston
Top End Kit Ceramic Comp Cyl 67.96/+0.02 11:1 Yam Mpn: Nx-40026-Ck
Fitment Yamaha Yz250 1992 1993 1994