Shimano dura ace 9000 road brake caliperthe new dual pivot design makes the section of the arm between the pivot and the pad much shorter which translates to 20 more power with better modulation the biggest change is power from the hoods is much closer to power from the drops he says half the power improvement comes from the new calipers and half from the new levers and use of the new coated cables the small arm attached to the cable side brake pad top was an articulating linkage that added