* Shift with thumbs or fingers, without changing position or grip* The most aerodynamic extension shifters* Installs without tools and saves fitting and assembly time* Fit in the end of any extension with an inner diameter of 19mm – 21.5mm* Cable length: -01: 650mm; -02: 500mm* 32g/pair* SRAM Model ID: ES-EAC-CLIC-A1