ATHENA P400270100014 Cylinder Kit 250cc

The 250cc cylinder kit represents excellence in motorcycle performance, designed to ensure power and reliability. Made from high-quality aluminum alloys, this cylinder is the result of advanced technologies and rigorous quality controls, ensuring superior performance and long-lasting durability.

Thanks to an innovative manufacturing process, the cylinders are cast in steel molds and machined with CNC machines, guaranteeing millimeter tolerances at every stage. The surface of the cylinder is perfectly flat, eliminating any fitting inaccuracies. The water channels have been optimized to increase cooling capacity, while the liners are made from a special compound of silicone carbide and nickel, ensuring exceptional resistance and prolonged lifespan.

With a bore of 78 mm and a stroke of 52.3 mm, this cylinder offers a displacement of 249.91 cc and a compression ratio of 13.6:1, reaching a maximum power of 44.6 HP at 12,600 RPM. The water cooling system ensures optimal operation, even in the most demanding conditions. This cylinder kit is the ideal choice for those looking to elevate their motorcycle's performance, combining cutting-edge technology with a design tailored for true two-wheeled enthusiasts.