PISTON KIT 08-09 WR250X 77 HC, FORGED WOSSNER 8772DB
Wossner forged piston kit with a 77.01mm bore and 76.97mm diameter. This Pro Series piston is engineered for high performance, featuring superior strength and design. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features include forged construction for superior strength, optimized heat transfer for efficient combustion, elliptical design for uniform load distribution, and high compression ratio for increased performance. Specifications: Bore: 77.01mm, Diameter: 76.97mm, Display (cm³): 249, Stroke (mm): 53.60, Clearance (mm): 0.04, Wossner Compression Ratio: 13.50:1, OEM Compression Ratio: 11.80:1, Dome Volume (cm³): -4.50, Compression Height (mm): 22.20. Cross-Reference OEM Part Numbers: Wossner Piston Yamaha WR250X (PN# 8772DB), Lock P/N: CW17, Pin P/N: WP083, Ring Set P/N: 770XAS-2.
- SKU
- 56-W239.B.WO
- Brand
- Wossner
- Availability
- In Stock (2)
FULL DESCRIPTION
Wossner 77mm Forged Piston Kit for WR250X
Enhance the performance of your motorcycle with this Wossner Pro Series forged piston kit. Engineered in Germany, this high-performance piston boasts superior strength and advanced design for optimal engine operation.
The piston features an elliptical design that ensures a uniform bearing surface even under the extreme conditions of heat expansion. This innovative design minimizes localized pressure and evenly distributes thrust loads, effectively preventing piston collapse and extending engine life.
Key Features:
- Forged construction for exceptional durability and strength.
- Designed for optimal heat transfer to the cylinder walls, promoting efficient combustion.
- Elliptical piston shape for uniform load distribution under thermal stress.
- Achieves a high compression ratio for a significant boost in performance.
- Precision manufactured in Germany to exacting standards.
Specifications:
- Bore: 77.01mm
- Diameter: 76.97mm
- Display (cm³): 249
- Stroke (mm): 53.60
- Clearance (mm): 0.04
- Wossner Compression Ratio: 13.50:1
- OEM Compression Ratio: 11.80:1
- Dome Volume (cm³): -4.50
- Compression Height (mm): 22.20
