WÖSSNER Forged Piston – Manufacturer Ref. 8137DB
Forged piston by Wössner, manufactured in Germany by a specialist in engine parts. Designed for the motocross world, this aluminum piston meets the machining and finishing standards expected for demanding engines. The skirt features an anti-friction treatment to reduce stress during high RPMs and limit wear on contact surfaces.
- Piston diameter: Ø 66.340 mm (indicated diameter 66.34 mm)
- Recommended bore diameter: 66.41 mm
- Oversize letter: B (oversize B)
- Material: Forged aluminum
- Number of rings: 1 (comes with ring, clips, and pin)
Delivered complete for a hassle-free installation: ring(s), clips, and pin included. This piston is intended for modifications and replacements on oversize cylinders and for motocross riders seeking a robust and precise engine exhaust part. Check the diameter and oversize before installation to ensure compatibility with your cylinder and piston/cylinder clearance.
Compatible motorcycles (examples):
- TM RACING MX 250 (2020)
- EVO-SET XC250R (2015)
- TM RACING EN 250 2T FI ES (2020)
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