Vertex Pistons 10-12 RM-Z 250 Forged Big Bore Piston Kit

Exact fit A, B or C pistons match your cylinder bore perfectly to maximize power and performance, while reducing blow-by and oil consumption. All piston kits include piston, rings, wrist pin and circlips required. Skirts are coated with a hi-tech molybdenum disulphide (MoS2) for faster break-in and increased piston life Heat treated with T-5 hardening and tempering cycle