PISTON KIT 1989 YZ125 56.50, WOSSNER 8131D050 YAMAHA MX
Wossner forged piston kit 56.50mm bore +0.50 oversize. Features a high-strength forged aluminium piston for demanding 2-stroke use with enhanced heat transfer and an elliptical design for uniform bearing surface under expansion. Specifications include an actual bore of 56.44mm, 28.00mm compression height, 0.06mm clearance, 50.00mm stroke, and 123 cm³ displacement. Precision engineered in Germany. Cross-reference OEM part numbers: Wossner Piston 8131D050, Ring Set RSB5650, Lock CW16, Pin WP036, Rod P2047. Internal reference 56-W582+050.WO. Weight 208g.
- SKU
- 56-W582+050.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit 56.50mm Bore
This Wossner forged piston kit features a +0.50mm oversize bore, with an actual bore measurement of 56.44mm. It is engineered for high-performance 2-stroke engines, offering superior strength and efficient heat transfer capabilities. The piston's elliptical design ensures balanced load distribution during thermal expansion, minimizing localized pressure and reducing the risk of structural failure. Manufactured in Germany for precision and reliability.
Key Features
- High-strength forged aluminum piston designed for demanding 2-stroke applications.
- Enhanced heat transfer from the combustion chamber to cylinder walls.
- Elliptical design promotes uniform bearing surface during thermal expansion.
- Optimized for 2-stroke engine performance requirements.
- Precision engineered in Germany.
Specifications
- Bore Size: 56.50mm (+0.50mm oversize)
- Actual Bore: 56.44mm
- Compression Height: 28.00mm
- Clearance: 0.06mm
- Stroke: 50.00mm
- Displacement: 123 cm³
- Wossner Compression Ratio: 2-stroke
- OEM Compression Ratio: 2-stroke
Kit Components
- Wossner Piston: 8131D050
- Ring Set: RSB5650
- Lock: CW16
- Pin: WP036
- Rod: P2047
