PISTON KIT 05-07 CR125 54.00 B, WOSSNER 8170DB HONDA MX

This Wossner 8170DB piston kit with a 54.01mm bore (+0.01mm oversize) is designed for Honda CR125R models from 2005 to 2007. The forged construction ensures enhanced strength, superior heat dissipation, and optimised performance under high-stress two-stroke operating conditions.

Features

• +0.01mm oversize forged piston for Honda CR125R engines

• Engineered for efficient heat transfer from combustion chamber to cylinder wall

• Elliptical profile provides consistent bearing surface during heat expansion

• Prevents localised pressure and minimises risk of piston collapse

• Manufactured in Germany

Specifications

• Bore diameter: 54.01 mm

• Display displacement: 125 cm³

• Stroke: 54.50 mm

• Clearance: 0.05 mm

• Compression ratio: 2-stroke (Wossner and OEM specification)

• Compression height: 28.00 mm

Cross-Reference OEM Part Numbers

• 13110-KSR-730

• 13120-KSR-730

• 13111-KV3-000

• 13111-KZ4-000

• 13121-KSR-731

• 94601-15000

• Wossner 8170DA

• Namura NX-10003

• Wiseco 859M05400

Included Components

• Piston kit part number: 56-W859.B.WO

• Circlip: CW15

• Wrist pin: WP032

• Ring set: RSB5400

• Connecting rod: P2009

Vehicle Fitments

• 2005 Honda CR125R

• 2006 Honda CR125R

• 2007 Honda CR125R