Upgrade the top end of your motocross or off-road motorcycle with the Cylinder Works Standard Bore High-Compression Cylinder Kit, manufacturer part number CW10011K01. Designed for select Honda CRF250R and CRF250RX applications, this complete kit includes the cylinder, matched piston kit, and gaskets needed for a reliable top-end rebuild. The standard-bore design maintains the original bore size while delivering a 13.9:1 compression ratio for strong engine performance.
The Cylinder Works cylinder is nickel silicon carbide plated for extended service life, consistent heat transfer, and dependable wear resistance. Its stock-style appearance preserves the factory look, while the matched Vertex piston is selected to support longevity, performance, and reduced engine noise. No machining is required for installation when used with the specified application and standard-bore configuration.
Fitment includes the 2018 Honda CRF250R, 2019 Honda CRF250R, and 2019 Honda CRF250RX. This kit is intended as a complete standard-bore replacement or high-compression top-end solution for compatible engines. The top-end gasket kit does not include valve stem seals. Replacement pistons, gaskets, and ring sets are available separately for future maintenance. Verify model year and application details before installation.
Features:
- Complete standard-bore high-compression cylinder kit
- 13.9:1 compression ratio for compatible Honda applications
- Includes cylinder, matched Vertex piston kit, and gaskets
- Nickel silicon carbide plated cylinder for extended service life
- Stock-style cylinder appearance
- Matched piston supports durability, performance, and reduced engine noise
- No machining required for specified standard-bore applications
- Top-end gasket kit does not include valve stem seals
- Fits 2018 Honda CRF250R, 2019 Honda CRF250R, and 2019 Honda CRF250RX
- Brand: Cylinder Works
- Manufacturer part number: CW10011K01
- Vendor part number: 422-10011K
Fitment:
2018 Honda CRF250R
2019 Honda CRF250R
2019 Honda CRF250RX