ATHENA Cylinder Kit 071500 70cc

The 70cc cylinder kit is designed to deliver high performance and reliability, making it an essential component for those looking to optimize their engine. Made from high-quality aluminum alloys, this cylinder is the result of advanced technologies and a manufacturing process that ensures millimetric tolerances at every stage. Its structure is coated with a nickel-silicon alloy, which contributes to increased wear resistance and prolonged durability.

With a bore of 47.6 mm and a stroke of 39.3 mm, the cylinder achieves a displacement of 69.9 cc and a compression ratio of 13.9:1, thus optimizing engine performance. The design includes five transfer ports and a dome-shaped piston crown, which enhance combustion efficiency and power output.

The water cooling system has been designed to ensure optimal thermal management, while the water channels have been revised to increase cooling capacity. The cylinder sleeve, made with a special blend of silicone carbide and nickel, ensures smooth piston operation and a long operational life.

Each cylinder is tested at controlled temperatures to guarantee maximum precision of the bores and completely flat surfaces, eliminating any mounting inaccuracies. The kit also includes the cylinder head, ready for installation. With this kit, every motorcyclist can rely on a product that combines innovation, performance, and durability, ideal for tackling any challenge on the road or track.