Shimano Ultegra - The true sporting spirit! The Ultegra series is "professionally tested" because it is derived directly from the Dura Ace group. Dual Pivot Caliper Dual pivot technology results in weight-saving, compact and robust brakes. Double-joint pull brakes have made considerable progress in terms of low tolerance, maximum torsional stiffness and high load capacity. They respond precisely and without delay and their service life is significantly longer. In addition, the brake pads are 100% more durable so that the rider can maintain the high performance of the brakes for longer.