Izumi Super Toughness KAI Chain

Specifically designed for the Tokyo Olympics and NJS certified for Japanese Keirin racing, this chain features a very slick, highly-functional new coating on the plates, bushings and rollers which is said to reduce resistance and drag by 10% compared to the traditional Model V Super Toughness when used in combination with a high-performance lubricant.

This new technology also increases hardness, durability and corrosion resistance.