56.4MM CYLINDER JUG PISTON KIT FOR YAMAHA TZR 125 TZR125 2RK 1987-1992
3BN00 cylinder have a 56.4mm bore and 50.0mm stroke, fits TZR125 before 1992. 3MB00 cylinder have a 56.0mm bore and 50.7mm stroke, fits TZR125 after 1993. Cylinder Piston Rings Kit 56.4mm (3BN00) Fit for Yamaha TZR 125 TZR125L 1987-1992.