Sram force 10 speed gear shift lever setthe sram force doubletap shifter and brake lever set lets you feel the advantage of having one simple motion for shifting the front or rear derailleur an elegant and new approach to shifting which will make you convert with seconds of your first use sram forces shifters features proprietary doubletap technology which utilizes a single lever that moves in one motion for up and down shifting seamless shifting and the ergonomic design will give you comfo