ATHENA Big Bore Cylinder Kit P400485100021 480cc for Yamaha
for YAMAHA WR F, YZ F
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The Big Bore 480cc cylinder kit is specifically designed for Yamaha motorcycles, offering a significant performance boost for motor enthusiasts. Made from high-quality aluminum, this kit is the result of over ten years of investment in the latest manufacturing technologies. Each cylinder is precision-engineered using computer numerical control machines, ensuring micron-level tolerances at every stage of production.
The advanced design includes optimized water channels to enhance cooling capacity and a special blend of silicon carbide and nickel for the cylinder sleeves, ensuring exceptional durability for both the piston and the cylinder itself. Every component undergoes rigorous quality control, ensuring it meets the highest standards of reliability and performance.
With a bore of 98 mm and a stroke of 63.4 mm, the cylinder offers a displacement of 478.2 cc and a compression ratio of 12.4:1, generating a maximum power of 56 HP at 8,500 RPM. The design also includes a piston pin diameter of 18 mm and two optimized thickness piston rings to ensure smooth and long-lasting operation.
- Bore: 98 mm
- Stroke: 63.4 mm
- Displacement: 478.2 cc
- Compression: 12.4:1
- Maximum power: 56 HP at 8,500 RPM
- Piston pin diameter: 18 mm
- Piston rings: 2, with optimized thickness
- Material: High-quality aluminum
- Optimized water channels for cooling
- Silicon carbide and nickel blend for cylinder sleeves
- Manufactured using CNC machines
- Rigorous quality control
