SLX Medium Cage Rear Derailleur 11-speed Size:11 Speed Save yourself from punctures with

Save yourself from punctures with our Inner Strength sub-tread protection while squeezing out every bit of cornering traction with the 61a/50a dual-compound rubber

waterproof material to help keep your gear safe

Outstanding braking and forward traction due to special center stud arrangement

Visible battery gauge

Egg noodles

SLX Medium Cage Rear Derailleur 11-speed Size:11 Speed Save yourself from punctures withShimano Ultegra Medium Cage Rear Derailleur 11 speed SHIMANO ULTEGRA Rear Derailleur Medium Cage SHIMANO SHADOW RD 11 speed. Updated with a SHIMANO SHADOW design, the SHIMANO ULTEGRA 8000 rear derailleur offers a sleek appearance and optimized shifting performance. Details: Rider tuned for sharp and silky shifts 20% light shifting operation SHADOW design with optimized slant angle OPTISLICK new shift cable with new hyper low friction coating