WÖSSNER Pro Series Forged Piston (manufacturer part number 8793D500): an aluminum piston machined in Germany, designed for off-road motorcycles and motocross use. Built to withstand engine stresses, it combines the mechanical strength of a forged piston with an anti-friction treatment on the skirt to limit wear under heat and facilitate break-in.

• Type: forged piston
• Material: aluminum
• Bore diameter (mm): 78.00
• Piston diameter Ø (mm): 77.940 (listed reference 77.94)
• Oversize letter: 500
• Number of rings: 3
• Delivered with rings, circlips, and pin

This Pro Series piston is intended for modifications and replacements on 2 or 4-stroke engines oriented towards off-road use. Its forged design provides a homogeneous structure resistant to the thermomechanical stresses encountered in motocross and enduro applications. The skirt treatment reduces friction and contributes to better dimensional stability during temperature variations.

Indicative compatibility: HONDA XR 250 R (ME08) 2003-2004 and XR 250 R (ME06) 1995. Always check the part number and dimensions before installation to ensure compatibility with your engine.