The Izumi V Super Toughness NJS chain is elegant, strong and durable. Its structure is made of Japanese steel, an extremely strong material that will guarantee great resistance and efficiency to transmit all the power generated by the pedals. It is worth noting that the Izumi V Super Toughness NJS chain uses an alloy material that includes a large amount of carbon for its connecting screws. In addition, Izumi use a patented treatment applied around the entire surface of the chain to increase its strength and prevent corrosion. Also, this spectacular golden chain with dark blue inner spaces meets the certification conditions of theJapanese Keirin Association (NJS), which means that it is one of the favourite chains for Keirin racers.