
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 greater displacement compared to the original, a popular option in tuning to further exploit the potential of the bottom-end and the original cylinder head.
Installation intended for enthusiasts and workshops concerned with reliability: adhere to the installation recommendations (piston clearance, torque specifications, cylinder head flatness check) and adjust the fuel injection/engine management if necessary. Ideal part for Cross and Enduro activities where consistency, controlled heating, and durability of the top-end are essential.
Manufacturer reference: CW11011K01