SRAM eTAP Clics are the perfect way to integrate electronic shifting your time trial setup. Features: Fits into most aero bar extensions with an inner diameter of 19 to 21.5mm Allows the rider to shift with fingers or thumbs Connects directly to the Blipbox without the need for tools Specifications: Shifter Style: Bar End Speed: - Derailleur Compatibility: SRAM eTap AXS (w/ Blipbox) Shift Mechanism: Electronic (Wired) Color: Black Weight: 32g (Pair)