The Story
Wossner forged piston kit designed for durability and optimized heat transfer. Engineered with an elliptical shape for uniform bearing surface distribution, preventing piston collapse. Manufactured in Germany for high performance and reliability.
Features
- Forged construction for superior strength and longevity
- Optimized heat transfer for efficient combustion
- Elliptical design for even thrust load distribution
- Manufactured in Germany
Specifications
- Piston Size: 86.92mm
- Bore: 87mm
- Oversize: Standard
- Clearance: 0.08mm
- Display: 465 cm³
- Stroke: 82.00mm
- Compression Ratio: 2-stroke
- Compression Height: 40.00mm
- Lock Part Number: CW18
- Pin Part Number: WP042
- Ring Set Part Number: RSC8750 x2
Cross-Reference OEM Part Numbers
- Wossner 8266DA
Vehicle Fitments
- Yamaha YZ490 (1982-1983)
- Yamaha IT490 (1983-1984)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Wossner forged piston kit designed for durability and optimized heat transfer. Engineered with an elliptical shape for uniform bearing surface distribution, preventing piston collapse. Manufactured in Germany for high performance and reliability.
Features
- Forged construction for superior strength and longevity
- Optimized heat transfer for efficient combustion
- Elliptical design for even thrust load distribution
- Manufactured in Germany
Specifications
- Piston Size: 86.92mm
- Bore: 87mm
- Oversize: Standard
- Clearance: 0.08mm
- Display: 465 cm³
- Stroke: 82.00mm
- Compression Ratio: 2-stroke
- Compression Height: 40.00mm
- Lock Part Number: CW18
- Pin Part Number: WP042
- Ring Set Part Number: RSC8750 x2
Cross-Reference OEM Part Numbers
- Wossner 8266DA
Vehicle Fitments
- Yamaha YZ490 (1982-1983)
- Yamaha IT490 (1983-1984)
