Wossner Forged Piston Kit 54.50mm Bore – Honda CR125 (1992–1999) / Husqvarna 125cc Models (1997–2013)
This Wossner forged piston kit is designed for Honda CR125 models from 1992 to 1999 and Husqvarna CR, WR, SM, SMS, and WRE 125 models from 1997 to 2013. With a 54.50 mm bore and 54.45 mm piston diameter (+0.50 mm oversize), it is ideal for cylinders that require significant oversizing. The forged piston construction ensures long-lasting durability and resistance to thermal and mechanical stresses. Manufactured in Germany with precision engineering.

Features

• Forged piston provides increased strength and reliability

• Superior heat transfer capability to cylinder walls

• Elliptical design promotes even thrust load distribution and minimises localised stress

• German-made for precise tolerances and consistent quality

Specifications

• Bore Size: 54.50 mm

• Piston Diameter: 54.45 mm

• Engine Displacement: 125 cm³

• Stroke: 54.50 mm

• Clearance: 0.05 mm

• Compression Height: 28.00 mm

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

Cross-Reference Wossner Part Numbers

• Piston Kit: 8020D050

• Lock: CW15

• Pin: WP032

• Ring Set: RSB5450

• Rod: P2009

Vehicle Fitments

• Honda CR125 (1992–1999)

• Husqvarna CR 125 (1997–2013)

• Husqvarna WR 125 (1997–2013)

• Husqvarna SM 125 (1997–2013)

• Husqvarna SMS 125 (1997–2013)

• Husqvarna WRE 125 (1997–2013)