ATHENA P400250100002 Cylinder Kit 449cc without Head for Kawasaki
for KAWASAKI KLX R, KX F
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The 449cc cylinder kit is specifically designed for Kawasaki motorcycles, offering high performance and reliability. Made from high-quality aluminum, this cylinder features a bore of 96 mm and a stroke of 62.8 mm, ensuring optimal displacement for a maximum power of 42 kW (57.12 HP) at 9,250 RPM. The compression ratio of 12.2:1 ensures superior efficiency, while the nickel-silicon alloy coating contributes to increased wear and corrosion resistance.
This kit is the result of over ten years of innovation and development, stemming from collaboration with universities and high-level engine tuners. Each cylinder undergoes rigorous quality control, ensuring that it meets the highest standards of performance and durability. With a flexible production department, the cylinder kit perfectly adapts to the needs of every motorcyclist, whether for road use or competition.
- Displacement: 449cc
- Bore: 96 mm
- Stroke: 62.8 mm
- Maximum power: 42 kW (57.12 HP) at 9,250 RPM
- Compression: 12.2:1
- Material: High-quality aluminum
- Coating: Nickel-silicon alloy
- Rigorous quality control
- Adaptable for road use and competition






