Cylinder Works 13-18 Suzuki RM-Z 250 250cc +3mm Big Bore Cylinder Kit 269cc 13.5:1 Comp. 80mm

OEM in apperance, yet performance driven in design. The Cylinder Works Big Bore Cylinder Kits contain a hand matched big bore Vertex piston and top end gasket kit wtih o-rings in an all-in-one kit, providing cost savings over purchasing OEM components separately.