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and compatibility — without compromising performance
Improved design and material over the original for greater strength and stiffness
fortifying strength and stiffness where it matters most while trimming excess weight elsewhere from the baseline construction
The stems have exceeded 2x the fatigue and static overload ISO requirements for racing bicycle steering components
our extensions offer the ability to change grips as your position develops
Izumi Super Toughness Kai Chain Tools and compatibility — without compromisingSpecifically 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. Visit the our handy IZUMI Chain Guide for more information.