The Wossner 8210D050 forged piston kit features a 56.50mm bore size and is designed for Kawasaki KX125 models from 1982 to 1985. Precision-engineered for efficient combustion chamber heat transfer and even thrust load distribution, this German-made piston is elliptically shaped to reduce localized pressure and prevent piston collapse.

Features

• Forged piston for increased strength and durability


• Designed to improve heat transfer from combustion chamber to cylinder walls


• Elliptical design ensures uniform bearing surface under heat expansion


• Prevents localized pressure and piston collapse


• Manufactured in Germany

Specifications

• Bore: 56.50 mm


• Display: 125 cm³


• Hub Stroke: 50.60 mm


• Clearance: 0.06 mm


• Compression Height: 29.70 mm


• Compression Ratio: 2-stroke (Wossner and OEM)


• Dome Volume: Not specified


• Theoretical Weight: Not specified

Cross-Reference OEM Part Numbers

• Piston: 8210D050


• Lock: CW16


• Pin: WP036


• Ring Set: RSB5650 x 2


• Rod: P2037


• Part No.: 56-W486.050.WO

Vehicle Fitments

• Kawasaki KX125 1982–1985