SHIMANO Deragliatore ULTEGRA Di2 R8050 2x11V Montaggio a, Black

 Description by sportisgood

Fast and smooth forward shifts even under high torque when pedaling ""Automatic alignment with chain position ""SHIMANO SYNCHRONIZED SHIFT Shimano -Semi-synchronized or fully synchronized shifting programsynchronized or fully synchronized´Revised to slightly spread the chain line without sacrificing shifting performance ""Fits shorter (410 mm) chainstays with 135 mm center distance ""System communication with the rear derailleur and automatic alignment with the chain position on the sprocket set helps minimize the risk of chain jump