The shimano ultegra r8000 double mechanical sti 11 speed levers are precision engineered carbon levers offer powerful braking and effortless 11 speed shifting making them the ideal choice for both enthusiast and competitive riders shimano ultegra r8000 double mechanical sti 11 speed lever features shift 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 light