Precision-engineered Ultegra STI lever with hydraulic disc brakes give you control, modulation and power with minimal effort in all riding conditionsShift cables are routed under the bar tape: re-development and positioning of the internal mechanism in combination with Polymer coated cables have made this possible, providing faster, lighter and smoother shiftingVivid indexing provides a constant amount of shift lever force across all 11 sprocketsErgonomic shift arc follows natural hand movement with inward shift stroke distance reduced for rapid and precise gear changesHydraulic brake lever provides excellent stopping power with less effort especially from the hood positionHydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wearFree stroke adjustment for pad to rotor contact settingTuneable reach adjuster enables custom fitment for all hands