Description
The Wiseco 89mm piston kit is engineered for the demanding demands of CR500R racing and high-rpm recreational riding. This precision-machined piston maintains stock bore diameter while delivering the durability and thermal stability required for sustained performance in two-stroke applications. Whether you’re refreshing a tired top-end or building a fresh motor, this OEM-equivalent replacement ensures reliable power delivery and combustion efficiency.
Technical Specifications:
- Bore diameter: 89mm
- Material: High-grade aluminum
- Construction: Precision-machined
- Fitment: Honda CR500R 1984-2001
- MPN: 871M08900
- Temperature tolerance: Extreme rated
- Installation: Bolt-on compatible
- Application: Racing and recreational
- Gasket kit: Not included









