PISTON KIT 1984 YZ125 56.75, WOSSNER 8120D075 YAMAHA MX
Wossner forged piston kit with a 56.75mm bore. Manufactured in Germany, it delivers improved strength and efficient thermal conductivity. Its elliptical design ensures a more uniform bearing surface under heat expansion, promoting even thrust load distribution and reducing the risk of piston collapse. Bore size: 56.75mm (56.69mm). Display volume: 123 cm³. Stroke: 50.00 mm. Clearance: 0.06 mm. Compression height: 30.80 mm. Compression ratio: 2-stroke (Wossner and OEM). Piston: 8120D075. Lock: CW16. Pin: WP036. Ring Set: RSB5675.
- SKU
- 56-W512+075.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit - 56.75mm Bore
Upgrade your 1984 Yamaha YZ125 with this high-performance Wossner forged piston kit. Engineered in Germany, this piston is designed for enhanced strength, durability, and efficient thermal conductivity. Its advanced elliptical profile ensures a more uniform bearing surface under heat expansion, promoting even thrust load distribution and reducing the risk of piston collapse for optimal performance and longevity.
Key Features:
- Forged piston construction for superior strength and resilience.
- Optimized for efficient heat transfer from combustion to cylinder walls.
- Elliptical design promotes uniform pressure distribution during thermal expansion.
- Manufactured in Germany to exacting standards.
Specifications:
- Bore Size: 56.75mm (actual 56.69mm)
- Display Volume: 123 cm³
- Stroke: 50.00 mm
- Clearance: 0.06 mm
- Compression Height: 30.80 mm
- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)
Component Details:
- Piston Part Number: 8120D075
- Lock Ring: CW16
- Piston Pin: WP036
- Ring Set: RSB5675


