The Story
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
Description
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
