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2Bros MCS LTD Company number 16176735 - Vat No. GB 508324506 - info@2bros-mx.com - Tel: 03301333748
This Wossner forged piston kit with a 55.75mm bore is an oversized (+2.00mm) replacement for the Sachs 125/7 engine. Precision-forged in Germany, it is engineered for strength, thermal efficiency, and longevity. The elliptical piston profile promotes even expansion and load distribution, reducing localised stress and preventing failure under two-stroke operating conditions.
Features
Forged construction for high durability and performance
Optimised for efficient heat transfer from combustion to cylinder walls
Elliptical design provides uniform bearing surface under thermal expansion
Even thrust load distribution minimises localised pressure points
Manufactured in Germany
Specifications
Bore: 55.75mm (+2.00mm Oversize)
Actual bore: 55.69mm
Display volume: 122 cm³
Stroke: 54.00mm
Clearance: 0.06mm
Wossner compression ratio: 2-stroke
OEM compression ratio: 2-stroke
Compression height: 38.00mm
Cross-Reference OEM Part Numbers
56-W9844.200
8287D200
Clip Part Number: CW16
Pin Part Number: WP136
Ring Set Part Number: RSB5575 (x2)
Vehicle Fitments
Sachs 125/7