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2Bros MCS LTD Company number 16176735 - Vat No. GB 508324506 - info@2bros-mx.com - Tel: 03301333748
This Wossner 8170DA standard bore piston kit with a 54.00mm diameter is specifically engineered for Honda CR125R models from 2005 to 2007. Crafted from forged material, it offers enhanced strength, efficient heat dissipation, and superior resistance to thermal stress, ensuring reliable performance in high-revving two-stroke engines.
Features
Standard bore forged piston for Honda CR125R two-stroke engines
Designed for optimal heat transfer from the combustion chamber to cylinder walls
Elliptical design improves bearing surface and load distribution
Prevents localised pressure and reduces risk of piston collapse
Manufactured in Germany
Specifications
Bore diameter: 54.00 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.A.WO
Circlip: CW15
Wrist pin: WP032
Ring set: RSB5400
Connecting rod: P2009
Vehicle Fitments
2005 Honda CR125R
2006 Honda CR125R
2007 Honda CR125R