Description
Shimano EW SD50 Di2 E Tube Wire 300mm Model=CenterLine XR Center Lock Disc Rotor The Watt has 10mm longer The Watt has 10mm longer rails to allow a greater possibility of adapting the saddle to extreme aerodynamic positions while a layer of gel inside the padding provides even more comfort and performance even on the long distances 8” x 1” x 0