Shimano ultegra brakes manual

Shimano Ultegra 11- Speed 11-32 cassette Shimano Ultegra Front and Rear brakes The Shimano Ultegra groupset, is Shimano's second-tier 11-Speed juggernaut and is a definite Ultegra Di2 uses the same battery as Dura-Ace Di2. However, according to the service manual (PDF), Shimano says the battery is good for about 30 percent fewer kilometers than Dura-Ace's 1000k range. The loss of power is mainly due to Ultegra's larger, less efficient (and less expensive) servo motors.