Description
The Wiseco 39.50mm piston kit delivers the compression ratio stability and durability your KTM 50 SX demands during sustained racing or aggressive trail riding. Built from high-silicon aluminum alloy and featuring E-coated critical surfaces, this forged piston maintains consistent performance across thermal cycles while resisting wear in high-stress applications. Whether you’re chasing lap times or maximizing reliability in competition, this complete kit eliminates guesswork with matched rings, wrist pins, and circlips engineered as a system.
- High-silicon aluminum alloy
- Forged construction
- E-coated crown and grooves
- 39.50mm bore diameter
- Includes forged rings
- Stainless wrist pins
- Circlips included
- Reduced machining (GP Series)
- Boost ports removed
- Enhanced top-end performance
- Fits KTM 50 SX 2001–2008
- MPN: 803M03950
