Cylinder Works Big Bore Cylinder Kit Royal Days INCLUDE for riding or racing

for riding or racing

Stems from the same design as the classic Challenger but with full-cupped lugs that are especially efficient in powder snow and make boondocking in bottomless powder seem easy

Inner pockets for optional divided D3O chest protectors

Hit bigger jumps

Available in three sizes

Cylinder Works Big Bore Cylinder Kit Royal Days INCLUDE for riding or racingFEATURES Super 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