ATHENA Big Bore Cylinder Kit P400270100005 365cc

The Big Bore cylinder kit of 365cc represents excellence in motorcycle performance. Designed to offer power and reliability, this engine group is made from high-quality aluminum alloy, ensuring superior strength and durability over time. With a bore of 90 mm and a stroke of 57.5 mm, the cylinder achieves a displacement of 365.8 cc, with a compression ratio of 14:1, thus optimizing engine performance.

The advanced technology used in production includes the use of CNC machines, which ensure thousandths of a millimeter tolerances at every stage of processing. The water channels have been redesigned to improve cooling capacity, while the cylinder liners are made with a special blend of silicon and nickel, which guarantees excellent piston efficiency and increased cylinder longevity.

Each cylinder undergoes rigorous quality control, tested at internal temperatures of 20 degrees to ensure precision in the holes and surfaces, which are perfectly flat to eliminate any inaccuracies. With a maximum power of 47.4 HP at 11,900 rpm, this kit is the ideal choice for those looking to push their performance to the limit, making every ride a unique and engaging experience.