WÖSSNER Forged Piston – Manufacturer Ref. 8267DA

Designed and machined in Germany by the specialist Wössner, this forged piston is aimed at demanding riders and mechanics engaged in motocross. Its forged aluminium construction provides a dense and homogeneous structure that better withstands thermomechanical stresses than a cast piston, particularly under intensive use. The skirt receives an anti-friction treatment to limit cylinder/piston friction and improve the longevity of moving parts.

• Type: forged piston
• Material: aluminium
• Piston diameter: Ø 39.950 mm (bore 40.00 mm)
• Oversize: Letter A
• Number of rings: 1 (supplied with ring(s), circlips and pin)
• Usage: Motocross / intensive training

Easy installation thanks to the precise bore and complete delivery (ring(s), pins and circlips). Reference suitable for the small displacements listed, notably the YAMAHA PW 50 (models 2024, 2025 and 2026 — 50 cm3). Ideal for those seeking reliability and robustness for their high-performance engine without compromising on machining and manufacturing quality.