Shimano Ultegra RD-R8000 Shadow Rear Derailleur Short Cage BlackThe Shimano Ultegra R8000 Shadow Rear Derailleur has a low profile design specifically designed to get you across the finish line. The slant angle has been optimized for extremely quick, precise 11 speed shifting. The Short Cage can take 11T-25T or 11-30T while the Medium Cage can take 11-28T or 11-34T. The maximum front difference is 16T. Available in Short and Medium Cage sizes.689228623156
