Made from pure Japanese steel, this is THE track chain. 

One of the few chains that meet the strict certification requirements of the Japanese Keirin Association (NJS), the Izumi-V is renowned among Keirin racers and track riders for its strength and efficient power transfer.

A special high-carbon alloy is used to produce the pins, often used in low-friction ball bearings, which offers a 300% increase in durability compared to a standard chain.