PISTON KIT 04-06 RMZ250 77 HC, FORGED WOSSNER 8661DA K1300-10052
Wossner forged high-compression piston kit with a 77mm bore (76.96mm). Designed for superior strength and heat transfer efficiency, this piston ensures optimal combustion performance. The elliptical design distributes thrust loads evenly, reducing localized pressure and preventing piston collapse. Manufactured in Germany. Features: High-compression forged piston for increased performance, optimized heat transfer for improved efficiency, elliptical design ensures uniform bearing surface under heat expansion, even thrust load distribution to prevent piston collapse, manufactured in Germany. Specifications: Bore Size: 77mm (76.96mm), Compression Ratio: 13.5:1, Part Number: 8661DA, Lock Part Number: CW16, Pin Part Number: WP059, Ring Set Part Number: 770XAS-2, Rod Part Number: P4002, Displacement: 249 cm³, Stroke: 53.60mm, Clearance: 0.04mm, Wossner Compression Ratio: 13.2:1, OEM Compression Ratio: 12.6:1, Dome Volume: -4.00 cm³, Compression Height: 19.60mm. Cross-Reference OEM Part Numbers: K1300-10052, 4843M07700.
- SKU
- 56-W306.A.WO
- Brand
- Wossner
- Availability
- In Stock (2)
FULL DESCRIPTION
Wossner Forged High Compression Piston Kit - 77mm Bore
Enhance your motorcycle's performance with this Wossner forged high-compression piston kit. Engineered for superior strength and optimal combustion, this piston is designed to deliver increased power and efficiency.
Key Features:
- High-compression forged design for a significant performance boost.
- Advanced heat transfer technology for improved operational efficiency.
- Innovative elliptical piston design ensures even thrust load distribution, preventing localized pressure and piston collapse under heat.
- Precision manufactured in Germany for exceptional quality and durability.
Specifications:
- Bore Size: 77mm (76.96mm actual)
- Compression Ratio: 13.5:1 (Wossner) / 12.6:1 (OEM)
- Dome Volume: -4.00 cm³
- Compression Height: 19.60mm
- Piston Pin Part Number: WP059
- Ring Set Part Number: 770XAS-2
- Lock Part Number: CW16
- Stroke: 53.60mm
- Clearance: 0.04mm
- Displacement: 249 cm³
- Part Number: 8661DA


