Electronic shifting for planetary gear hub Gear hubs are nice, but after getting a Rohloff I realized that shifting is extremely difficult and requires lots of effort. So this got me thinking: do electronic shifting systems exist for gear hubs? I know about Di2 for derailleurs, but what about geared hubs?
Rohloff has developed electronic shifting for their hub; Shimano offers an electronic-shifting add-on for Alfine. I'm not aware of any such from SRAM or Sturmey-Archer.