ATHENA Big Bore Cylinder Kit P400250100003 490cc for Kawasaki
for KAWASAKI KLX R, KX F
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The Big Bore cylinder kit of 490cc is specifically designed for Kawasaki motorcycles, offering a significant performance boost. Made from high-quality aluminum alloy, this cylinder is the result of over a decade of technological innovation and development. Thanks to a state-of-the-art manufacturing process, the cylinder features a bore of 100 mm and a stroke of 62.8 mm, ensuring a displacement of 493 cc.
With a compression ratio of 12.1:1, this kit is capable of delivering a maximum power of 43.5 kW (59.16 HP) at 8,750 RPM, ensuring high performance and responsiveness. Its construction is further enhanced by a nickel-silicon alloy coating, which contributes to greater durability and wear resistance. Each cylinder undergoes rigorous quality control, ensuring it meets the highest standards of reliability and performance.
- Bore: 100 mm
- Stroke: 62.8 mm
- Displacement: 493 cc
- Compression: 12.1:1
- Maximum power: 43.5 kW (59.16 HP) at 8,750 RPM
- Material: high-quality aluminum alloy
- Coating: nickel-silicon alloy
- Rigorous quality control


