Description
When you’re pushing a 2-stroke engine to its limits, a worn or undersized piston compromises compression, throttle response, and reliability. The Wiseco 826M04200 restores lost performance and durability with precision engineering and aerospace-grade materials—giving you the confidence to ride hard without worrying about catastrophic failure.
This all-inclusive kit fits Kawasaki KFX50 (2003–2009) and Suzuki JR50 (1978–2006) models and handles the high temperatures and pressures that come with aggressive riding. Installation is straightforward with all necessary components included.
- 42.00 mm oversize bore
- CNC-machined aluminum
- Aerospace-grade high-silicon alloy
- Forged construction
- Includes piston, rings, wrist pin, circlips
- Tight tolerance fitment
- Enhanced compression efficiency
- Superior heat resistance
- Kawasaki KFX50 compatible
- Suzuki JR50 compatible
- Bolt-on installation
