PISTON KIT B 97MM YAMAHA YZ 450F 20-22, ATHENA S5F09700005A
ATHENA forged piston kit for Athena and OE cylinders. Features a 96.95 mm bore diameter, 13.7:1 compression ratio, and 449 cc displacement. Made from a special high-performance aluminum alloy with high silicon content, this piston is produced using cutting-edge CNC machining tools for dimensional tolerances of less than 0.01 mm. Some piston skirts have a molybdenum disulfide coating to reduce friction. The kit includes piston rings made in Japan with wear-resistant coatings (PVD or chromium nitride), a pin, circlips, and piston rings. All components are replaceable and interchangeable. Technical features: Big End Pin Diameter (mm) 18x10x48.8, Compression Height (mm) 24.00, Piston Pin Type Biconical, Piston Type Forged, Number Of Segments 3. Weight: 0.33 Kg.
- SKU
- 56-W4787.A.ATH
- Brand
- Athena
- Availability
- In Stock (1)
FULL DESCRIPTION
Athena Forged Piston Kit - 97mm Bore
Enhance your motorcycle's performance and reliability with the Athena Forged Piston Kit. Engineered for demanding off-road use, this piston kit is crafted using advanced reverse extrusion and cutting-edge CNC machining for superior dimensional accuracy, ensuring tolerances less than 0.01 mm.
Constructed from a special high-performance aluminum alloy with a high silicon content, Athena pistons offer exceptional durability and performance that meets or exceeds Original Equipment (OE) standards. The piston's perfectly smooth profile promotes optimal airflow and efficient flame propagation for improved combustion. Some applications feature a molybdenum disulfide coating on the piston skirt, applied via screen printing, to further reduce friction, boost performance, and extend the lifespan of the component.
Each piston is meticulously engineered in Italy by the Athena R&D department and undergoes rigorous testing on engine dynamometer benches and real-world track conditions to validate its performance even under the most extreme circumstances. This commitment to quality ensures advanced technical solutions and the highest manufacturing standards.
This piston kit includes the piston, piston pin, circlips, and piston rings. The piston rings, manufactured in Japan with wear-resistant coatings such as PVD or chromium nitride, are designed to minimize friction with the cylinder, leading to higher performance and increased durability. These rings maintain a perfect seal with the cylinder liner even at low tangential loads.
Key Features:
- Forged Piston Type
- High-performance aluminum alloy with high silicon content
- Dimensional tolerances under 0.01 mm
- Smooth piston profile for improved airflow and flame propagation
- Optional molybdenum disulfide coating on some skirts to reduce friction
- Piston rings made in Japan with wear-resistant coatings
- Kit includes: Piston, Piston Pin, Circlips, and Piston Rings
- All components are replaceable and interchangeable
Technical Specifications:
- Bore Diameter: 96.95 mm
- Compression Height: 24.00 mm
- Compression Ratio: 13.7:1
- Displacement: 449 cc
- Number of Segments: 3
- Piston Pin Type: Biconical
- Big End Pin Diameter: 18x10x48.8 mm
- Net Weight: 0.33 Kg
