Cylinder Works Big Bore Cylinder Kit Fits Yamaha - 450 cc - Nickel Silicon Carbide kimpex181222 The well-thought out design and

The well-thought out design and robust construction

Gearing ratio refers to the ratio of the rear to front sprockets

5740 Tensile strength / 410 wear resistance

Snap rings included

The recontoured top is 4-5” shorter (depending on model) and the trimmed bottom profile is narrower

Cylinder Works Big Bore Cylinder Kit Fits Yamaha - 450 cc - Nickel Silicon Carbide kimpex181222 The well-thought out design andSuper Convenient, just purchase and install. Virtually identical in appearance to stock. Comes in standard and big bore sizes. Nickel Silicon Carbide plated for long life. Honed to exact size for easy piston installation Cylinders are direct bolt on no machining required unless noted. Big Bore Kit includes Cylinder, Gaskets, Piston, Rings, Pin, and Clips