PISTON KIT 88-89 CR125 55.50, WOSSNER 8125D150 HONDA MX

The Wossner 8125D150 piston kit is designed for Honda CR125 models from 1988 to 1989, featuring a 55.50 mm bore for +1.50 mm oversize applications. Made in Germany using forged construction, this piston is engineered for durability and optimal heat dissipation. Its elliptical shape promotes even bearing surface distribution under thermal expansion, reducing localised stress and preventing piston collapse. The kit includes all necessary components for a reliable engine rebuild.

Features

• Forged piston construction for enhanced strength and performance

• Superior heat transfer from combustion chamber to cylinder wall

• Elliptical design ensures even thrust load distribution

• Reduces risk of piston collapse under high thermal stress

• Manufactured in Germany to high precision standards

Specifications

• Bore Size: 55.50 mm

• Actual Bore Diameter: 55.44 mm

• Stroke: 54.00 mm

• Display Displacement: 125 cm³

• Clearance: 0.06 mm

• Compression Ratio (Wossner and OEM): 2-stroke

• Compression Height: 28.00 mm

Cross-Reference Wossner Part Numbers

• Piston Kit: 8125D150

• Lock: CW15

• Pin: WP032

• Ring Set: RSB5550

• Rod: P2009

• Part No.: 56-W564+P6.WO

Vehicle Fitments

• Honda CR125 (1988–1989)