Wossner 69mm Bore Piston Kit (PN# 8194D200) is designed for Suzuki RM250 and PE250 models from 1977 to 1981. This forged piston ensures high strength, efficient heat transfer, and durability. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards.

Features

• High-strength forged piston for durability and performance


• Optimized heat transfer for efficient combustion


• Elliptical design prevents piston collapse and ensures even load distribution


• Manufactured in Germany

Specifications

• Bore: 69mm


• Actual diameter: 68.94mm


• Display (cm³): 398


• Stroke (mm): 55.50


• Clearance (mm): 0.05


• Compression Ratio: OEM


• OEM Compression Ratio: 11.10:1


• Dome Volume (cm³): -0.20


• Compression Height (mm): 22.80

Cross-Reference OEM Part Numbers

• Lock: CW18


• Pin: WP033


• Ring Set: RSB6900 X 2

Vehicle Fitments

• Suzuki RM250 (1977-1981)


• Suzuki PE250 (1977-1981)