The WÖSSNER forged piston (manufacturer reference 8645DA) is aimed at demanding riders who are overhauling the top end of their motocross engine. Forged in Germany and machined to nominal tolerances, this aluminium piston features an anti-friction treatment on the skirt to limit wear during the first few kilometres after reassembly. Supplied complete, it includes rings, circlips, and a pin for quick installation.

• Bore diameter: 76.00 mm
• Piston diameter: Ø 75.960 mm (Ø 75.96)
• Oversize letter: A (oversize)
• Material: Forged aluminium
• Number of rings: 2
• Contents: piston, rings, circlips, and pin

Designed for motocross applications, this piston is suitable for refurbishment or engine preparation operations where a high-quality performance part is sought. Its skirt finish and dimensional precision facilitate fitting to the bore and controlled running-in. Examples of compatible common models: KTM 250 EXC-F SIX DAYS (2013), HUSABERG FE 250 (2013), KTM 250 EXC-F (2013) — always check the engine reference before ordering.