Piston Kit 1987 RM125 55.00, Wossner 8122D100 Suzuki MX

This Wossner 55.00mm (+1.00 oversize) forged piston kit is designed for the Suzuki RM125 1987 model. Featuring a forged construction and elliptical profile, the piston provides improved strength, thermal expansion control, and even load distribution. Manufactured in Germany for two-stroke engine applications, it supports efficient heat transfer from the combustion chamber to the cylinder walls under high-performance conditions.

Features

• Forged piston for increased strength and reliability

• Elliptical design maintains uniform bearing surface during heat expansion

• Even thrust load distribution reduces localised pressure and risk of piston collapse

• Optimised for effective heat transfer to cylinder walls

• Manufactured in Germany

Specifications

• Bore: 55.00mm

• Actual diameter: 54.94mm

• Displacement: 123 cm³

• Stroke: 70.00mm

• Clearance: 0.06mm

• Compression height: 37.00mm

• Compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

• Piston Kit Part No.: 56-W557+100.WO

• Wossner Piston Kit No.: 8122D100

• Lock: CW14

• Pin: WP025

• Ring Set: RSB5500 x 2

Vehicle Fitments

• Suzuki RM125 1987