The Tecno-3 Push Flex completely eliminates the pressure zone on the instep and significantly improves the feeling of closure. Equipped with a smaller and flexible contact surface on the tongue of the shoe, it succeeds in optimally adapting the different needs and body shapes of the different cyclists without creating overpressure zones. It guarantees a micrometric setting, an optimal closing / relaxation speed and thus makes setting even easier while driving. Like most Sidi small parts, the Tecno 3 Push Flex system is interchangeable.