PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DC
Wossner forged piston kit with a 77.02mm bore and 76.98mm diameter. Manufactured in Germany, this piston offers superior strength and design, ensuring 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, optimized heat transfer, and an elliptical design for uniform load distribution. Specifications: Bore 77.02mm, Diameter 76.98mm, Display (cm³) 249, Stroke (mm) 53.60, Clearance (mm) 0.04, Wossner Compression Ratio OEM, OEM Compression Ratio 11.80:1, Dome Volume (cm³) -5.90, Compression Height (mm) 22.90. Cross-reference OEM part numbers include Wossner Piston Yamaha WR250X (PN# 8729DC), Lock P/N: CW17, Pin P/N: WP083, Ring Set P/N: 770XAS-2. Weight 274g.
- SKU
- 56-W238+00C.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit - 77.02mm Bore
Enhance the performance and durability of your motorcycle with this Wossner Forged Piston Kit. Precision-engineered in Germany, this kit features a 77.02mm bore and a 76.98mm diameter, designed to deliver exceptional strength and optimal heat transfer.
The advanced elliptical design ensures a uniform bearing surface, even under extreme heat expansion. This reduces localized pressure points and evenly distributes thrust loads, effectively preventing piston collapse and ensuring a longer lifespan.
Key Features:
- Forged Construction: Provides superior strength and resilience for demanding conditions.
- Optimized Heat Transfer: Promotes efficient combustion by transferring heat effectively to cylinder walls.
- Elliptical Design: Guarantees uniform load distribution and reduces localized pressure for enhanced reliability.
- German Engineering: Manufactured to exacting standards in Germany for premium quality.
Specifications:
- Bore: 77.02mm
- Diameter: 76.98mm
- Display (cm³): 249
- Stroke (mm): 53.60
- Clearance (mm): 0.04
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 11.80:1
- Dome Volume (cm³): -5.90
- Compression Height (mm): 22.90
Included Components:
- Wossner Piston (PN# 8729DC)
- Lock Ring P/N: CW17
- Pin P/N: WP083
- Ring Set P/N: 770XAS-2
