PISTON KIT 85-86 CR125 54.50, WOSSNER 8127D050 HONDA MX

The Wossner forged piston kit with a 54.50 mm bore (54.44 mm actual) is specifically designed for the Honda CR125 models from 1985 to 1986. With a +0.50 mm oversize, this piston provides enhanced durability and optimal heat transfer. Its elliptical profile ensures uniform expansion and balanced thrust distribution, significantly reducing the risk of piston damage under high-performance conditions. Precision-crafted in Germany to maintain reliability and performance.

Features

• Forged construction ensures high durability and thermal strength

• Elliptical design offers consistent bearing surface under thermal expansion

• Promotes efficient heat dissipation from combustion chamber to cylinder wall

• Reduces risk of localised pressure points and piston collapse

• Manufactured in Germany with precision engineering

Specifications

• Bore Size: 54.50 mm (54.44 mm)

• Piston Part Number: 8127D050

• Lock Part Number: CW14

• Pin Part Number: WP025

• Ring Set Part Number: RSB5450 x 2

• Display (Displacement): 124 cm³

• Stroke: 54.00 mm

• Clearance: 0.06 mm

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

• Compression Height: 28.00 mm

Cross-Reference OEM Part Numbers

• 56-W563+050.WO

Vehicle Fitments

• 1985 Honda CR125

• 1986 Honda CR125