Cylinder Works 16-18 Yamaha WR 450 F 450cc Standard Bore High Compression Cylinder Kit 13.5:1 Comp. - 20005-K02HC

Cylinder Works 03-06 Yamaha WR 450 F 450cc Standard Bore High Compression Cylinder Kit 13.5:1 Comp.

Cylinder Works 16-18 Yamaha WR 450 F 450cc Standard Bore Cylinder Kit 12.5:1 Comp. 97mm

Cylinder Works 10-13 Yamaha YZ 450 F 450cc Standard Bore High Compression Cylinder Kit 13.5:1 Comp.

Cylinder Works 07-15 Yamaha WR 450 F 450cc Standard Bore High Compression Cylinder Kit 13.5:1 Comp.

Cylinder Works 2017 Yamaha YFZ 450 450cc Standard Bore High Compression Cylinder Kit