Description
The Wossner 8645DB piston kit is engineered for KTM 250 SX-F riders who demand reliability and responsive power delivery over an entire racing season. Constructed from 4032 T6 forged aluminum, this kit withstands the thermal cycling and combustion pressures of high-RPM 2-stroke performance while the permanent skirt coating minimizes friction losses. Complete with rings, pin, and clips, installation is straightforward—bolt-on simplicity without compromises on durability.
- Diameter: 75.97mm
- Material: 4032 T6 forged aluminum
- Application: KTM 250 SX-F 2006-2012
- Permanent skirt coating included
- T6 heat-treated for durability
- Reduced piston rock design
- FEA-optimized geometry
- Complete kit contents
- German engineering, Wossner proprietary forging









