Description
The stock piston in your CR250R won’t keep pace with serious trail or track work. This Wiseco kit restores lost compression, increases power output, and delivers the durability required for consistent high-performance operation. Whether you’re rebuilding after a top-end failure or upgrading for more aggression, this is the piston solution CR250R owners rely on.
Wiseco engineered this kit with high-silicon aluminum that withstands the thermal and mechanical stress of racing conditions. The precision CNC-machined design optimizes ring seal and combustion efficiency, while the titanium nitride ring coating reduces friction and extends ring life. You get measurable horsepower gains without sacrificing engine longevity.
- Bore diameter: 66mm
- Material: High-silicon aluminum
- Ring coating: Titanium nitride
- Machining: CNC-precision
- Compression increase: Optimized ratio
- Fitment: Honda CR250R 1984–1985
- Fitment: Honda ATC250R 1985–1986
- Fitment: Honda TRX250R 1986
- Installation: Bolt-on replacement
- MPN: 526M06600
