Shimano EW-SD50 Di2 E-Tube Wire 650mm Greases Enduro uses a 4 mm

Enduro uses a 4 mm diameter ball that has +50% mass compared to the competition

Affordable lightweight aluminum levers with an optimized shape

- Aerodynamic ergo top section enhances hand comfort over longer rides without limiting range of hand positions

Threaded bottom brackets for SRAM and Truvativ cranksets

- Rear is flip-flop threaded for freewheel one side

Shimano EW-SD50 Di2 E-Tube Wire 650mm Greases Enduro uses a 4 mmShimano E Tube wires and connectors Frame grommets for E tube internal wiring compatible frames are sold separately, see Shimano Frame Grommet Kit Electronic Shifter Extra Parts Ultegra Di2 wires utilize Shimano's e tube technology; e tube is a two prong system and is NOT cross compatible with Dura Ace 7970 Di2 wiring All e tube wires may be used for internal or external applications Product Specifics Length: 650 Today's Stock Status 10 Available to