The Tecno-4 Iron is a closure mechanism developed by Sidi for its high-performance cycling shoes. It represents the latest evolution in Sidi’s dial-based systems offering enhanced ergonomics adjustability and durability.The Tecno-4 dial lifts away from the shoe tongue creating more space for the foot to slide in easily The rotor has been redesigned to be lighter and quicker to operate than previous Tecno systems The central mechanism balances tension across the shoe adapting to various instep shapes for a secure and comfortable fit
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