Izumi: The Izumi V Super Toughness NJS Track Chain is the benchmark for strength, reliability and performance. Trusted by world champions, alleycat racers and single speed riders alike, it is designed to deliver instant, efficient power transfer whether in competition or everyday riding.Constructed in Japan from pure Japanese steel, it features high-carbon alloy connecting pins for exceptional durability—up to 300% stronger than a standard chain. With its NJS certification, the Super Toughness is one of the few chains approved for Keirin racing, renowned for its combination of toughness, longevity and distinctive finish.Features Trusted by professional racers and everyday riders Made from pure Japanese steel High-carbon alloy connecting pins with 300% more durability than a standard chain Certified by the Japanese Keirin Association (NJS) Exceptional power transfer and long service life SPECIFICATIONSLinks: 106Pitch: 1/2 x 1/8Made in: Japan
