CYLINDER WORKS Big Bore Cylinder Kit - Ø82mm dedicated to Honda CRF250R/RX. Designed for motocross/enduro riders seeking a more responsive throttle and improved engine response after preparation or refurbishment of the top-end.

This kit combines a Cylinder Works cylinder with a Vertex piston and includes Cylinder Works top-end gaskets for a complete bore restoration. The increase in diameter to Ø82 mm allows for a larger displacement compared to the stock, a popular option in tuning to further exploit the potential of the stock bottom-end and cylinder head.

• Contents: Vertex piston – Cylinder Works cylinder – Cylinder Works top-end gaskets
• Bore diameter: Ø82 mm (big bore)
• Usage: competition preparation, high-quality top-end refurbishment

Installation intended for enthusiasts and workshops concerned with reliability: follow the installation recommendations (piston clearance, torque specifications, cylinder head flatness check) and adjust the fuel injection/engine management if necessary. Ideal part for motocross and enduro activities where consistency, controlled heating, and durability of the top-end are essential.

Manufacturer reference: CW11011K01