This Wossner 67.25mm (+0.25 oversize) forged piston kit is designed for Suzuki RM250 models from 1987 to 1988. Made in Germany, this piston features a forged construction and an elliptical profile that optimises heat expansion management and distributes mechanical loads evenly. Engineered for two-stroke engines, it ensures effective heat transfer from the combustion chamber to the cylinder walls, supporting reliable engine performance.

Features

• Forged piston for superior strength and durability

• Elliptical design provides uniform bearing surface during heat expansion

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

• Designed for efficient heat transfer to cylinder walls

• Manufactured in Germany

Specifications

• Bore: 67.25mm

• Actual diameter: 67.19mm

• Displacement: 246 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-W558+025.WO

• Wossner Piston Kit No.: 8157D025

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6725

Vehicle Fitments

• Suzuki RM250 1987

• Suzuki RM250 1988