PISTON KIT 85-86 RM125 54.50, WOSSNER 8123D050 SUZUKI MX
Wossner forged piston kit with a 54.50mm bore and +0.50mm oversize specification. Manufactured in Germany, this piston features an elliptical profile designed to create a uniform bearing surface under thermal expansion, reducing localized pressure and the risk of piston collapse while promoting efficient heat transfer. The kit includes piston, pin, locks, and ring set. Specifications include an actual bore of 54.44mm, stroke of 54.00mm, clearance of 0.06mm, 2-stroke compression ratio, compression height of 29.50mm, and displacement of 123 cm³. Wossner Piston PN: 8123D050, Lock P/N: CW14, Pin P/N: WP025, Ring Set P/N: RSB5450 (x2).
- SKU
- 56-W519+050.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner 54.50mm Forged Piston Kit for Suzuki RM125
Enhance the performance and durability of your Suzuki RM125 with this premium forged piston kit from Wossner. Engineered for the 1985 and 1986 model years, this kit features a 54.50mm bore with a +0.50 oversize specification, ensuring a precise fit and optimal power output.
Key Features:
- Forged piston construction for superior strength and longevity.
- Elliptical piston design promotes even load distribution and reduces stress during heat expansion, preventing piston collapse.
- Optimized for efficient heat transfer from the combustion chamber to the cylinder walls, contributing to better engine cooling.
- Manufactured in Germany to exacting standards.
- Complete kit includes piston, pin, locks, and ring set.
Specifications:
- Bore Size: 54.50mm
- Actual Bore: 54.44mm
- Stroke: 54.00mm
- Clearance: 0.06mm
- Compression Ratio: 2-stroke (Wossner and OEM)
- Compression Height: 29.50mm
- Displacement: 123 cm³


