PISTON KIT 1984 YZ125 56.00, WOSSNER 8120DA YAMAHA MX

This Wossner forged piston kit with a 56mm bore (55.94mm) is designed for the 1984 Yamaha YZ125. Manufactured in Germany, it delivers high durability and thermal efficiency. The piston features an elliptical design that ensures a uniform bearing surface during expansion, reducing stress and helping prevent piston collapse under load.

Features

• Forged piston construction for enhanced strength

• Engineered for efficient heat transfer to the cylinder walls

• Elliptical profile supports even expansion and load distribution

• Made in Germany

Specifications

• Bore size: 56mm (55.94mm)

• Display volume: 123 cm³

• Stroke: 50.00 mm

• Clearance: 0.06 mm

• Compression height: 30.80 mm

• Theoretical weight: Not specified

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

Cross-Reference OEM Part Numbers

• Piston: 8120DA

• Lock: CW16

• Pin: WP036

• Ring Set: RSB5600

Vehicle Fitments

• Yamaha YZ125 1984