Izumi Kai super toughness chain Narrow

Specifically designed for the Tokyo Olympics, 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.

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• seamless bushings support precision rollers for a smooth, quiet ride