Izumi Super Toughness KAI chain
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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.
• 1/2" x 1/8"
• seamless bushings support precision rollers for a smooth, quiet ride
• 106 links (including threaded NJS-style connector link)
• color: titanium gray