Wossner forged Piston kitRef : WO00104A / 1093493001

WÖSSNER Forged Piston – Manufacturer Ref. 8050D100

Designed for demanding motocross and track use, this Wössner forged piston is manufactured in Germany by a specialist in 2 and 4-stroke engine parts. Made from forged aluminum, it features a skirt treated with anti-friction properties to minimize wear during temperature rises and high RPMs.

• Material: forged aluminum
• Piston diameter: Ø 71.93 mm
• Cylinder bore diameter: 72.00 mm
• Oversize letter: 100
• Compression: standard
• Delivered complete: ring(s), circlips, and pin

The machined diameter (71.93 mm) corresponds to a planned bore of 72.00 mm; the oversize reference 100 should be verified against your cylinder before installation. The piston and skirt benefit from precise machining to ensure controlled piston-cylinder clearance during break-in.

This part is intended for the motocross engines listed in the compatibility (e.g., MAICO GS250 1984, KTM 240 MC 1981/1982), and this piston is aimed at builds where assembly reliability and material quality are crucial. Follow the manufacturer's recommendations for installation and break-in to ensure optimal operation of the thermal unit.