Shimano 105 5700 double sti shifter setergonomically designed 10 speed 105 dual control levers ergonomic bracket shape clean cable routing better operation lighter steering action and clean handlebar area featuresshift cables are routed under the bar tape re development and positioning of the internal mechanism provides a faster lighter and smoother shiftergonomic shift arc follows natural hand movement with inward shift stroke distance reduced for rapid and precise gear changesbrake leve