NEW Swiftwick Vision Five Winter Collection Socks - 5 inch, Winter Heather Forest, XL variant-size-med The Ultegra RX Rear Derailleur

The Ultegra RX Rear Derailleur is available in 11-speed Mechanical or Di2 compatible options

With smooth shifting performance and durable construction

ISO Width (mm): 51

Rear Derailleur: SRAM NX Eagle 12 Speed

Length: 40

NEW Swiftwick Vision Five Winter Collection Socks - 5 inch, Winter Heather Forest, XL variant-size-med The Ultegra RX Rear DerailleurStay warm in style by slipping into the Vision Five Winter Collection. Created with Merino Wool and high performance, lightweight Olefin fiber wicks moisture and dries quickly. Merino wool offers warmth and whicking properties Moderate compression contours and supports every hill and valley of your foot, no bunching or voids Olefin fabric is abrasion resistant, strong and colorfast Virtually invisible seam eliminates friction in the toebox Arch band