WR250R '08 - '18
WR250X '08 - '11
- Kit includes aluminum cylinder with nickel-carbide coating designed with larger water jackets
- Specially designed, high performance, hard anodized power valves (cannot use OEM)
- Forged piston with molybdenum coating
- Does not include cylinder head.
You will need to tune your EFI with something like the Power Commander V to get the most out of your Big Bore kit.