Shimano's revolutionary Dura-Ace Di2 electronic drivetrain has been highly touted in racing circles for its remarkable shift performance. Now it looks like it's been accepted by the mostly non-racing ...
If you could have your choice between the new Shimano Dura-Ace Di2 and SRAM’s eTap, which electric drivetrain would you pick? SRAM Red eTap review Shimano Dura-Ace Di2 9170 review SRAM Red HRD eTap ...