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

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

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

Cylinder Works 01-13 Yamaha WR 250 F 250cc Standard Bore High Compression Cylinder Kit 13.5:1 Comp.

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