Cylinder Works - Yamaha WR450F '07-'15 YZ450F '06-'09 YFZ450R '09-'18

A Cylinder Works replacement cylinder is a completely new not remanufactured cast aluminium nickel silicon carbide (NSC) electroplated stock bore cylinder that appears just like an OE cylinder.

NSC is a composite of nickel and silicon carbide providing an excellent wear-resistant surface with oil retention capabilities.

Cylinders are then diamond honed to the exact bore dimension and proper surface finish to ensure the proper ring seal and oil retention.

Features:

• Cylinder looks just like stock.
• Nickel silicon carbide plated for longer life.
• No machine work needed *
• Replacement cylinder for standard bore only.

* Honda CRF250R and CRF250X may require slight case modification. Kit comes with instructions.