EW-SD300
Brand: Shimano
E-Tube wire of the 12-speed Di2 generation, markedly slimmer than the EW-SD50: ø 2.4 mm for the cable and above all ø 3.45 mm for the plug, against ø 5.1 mm before. That one-third saving on the connector is what allows the loom to pass through bars and frames with integrated routing. Shimano gives the same 150 to 1,600 mm range, plus an EW-SD300-I version for internal routing.
| Type | Electronic shifting accessory |
|---|---|
| Model years | since 2020 |