Shimano EW-SD50 Di2 eTube Wire - 700mm Rim Brake Pads this grey aluminum ring runs

this grey aluminum ring runs SRAM 12-speed Flattop road chains and is engineered to deliver SRAM's X-Range gearing for smoother

smooth riding style who value responsiveness and weight savings over the extra sidewall protection of the ProWALL version

and variable surfaces

and using the Refresh Kit at regular intervals extends pedal life significantly compared to running them to failure

Shimano EW-SD50 Di2 eTube Wire - 700mm Rim Brake Pads this grey aluminum ring runsWhich Di2 Systems Use the Shimano EW SD50 700mm eTube Wire? The Shimano EW SD50 is the Di2 E Tube wire for older generation Di2 systems, compatible with both internal and external routing configurations. At 700mm it suits shorter routing runs for derailleur connections and junction to component wiring on Dura Ace 9070, Ultegra 6870, 105 R7070, and similar pre 12 speed Di2 groupsets. Unlike the current EW SD300, the EW SD50 can run through both