Description
The Wiseco 871M09050 delivers the compression and durability required to extract maximum power from your CR500R while maintaining reliability through extended high-rpm operation. Built with aerospace-grade aluminum and precision CNC machining, this piston kit eliminates the weak link in aging 2-stroke engines. Whether you’re restoring a classic or refreshing a proven platform, this is the part serious riders choose.
- 90.50 mm bore diameter
- 1.5 mm oversize specification
- CNC-machined aerospace aluminum
- Includes rings, wrist pin, circlips
- Honda CR500R 1984–2001 fitment
- Also compatible CR480R models
- Bolt-on installation
- High-temperature resistant design
- OEM part number 871M09050









