Shifting is a simple matter of one click for easier, one click for harder, and a double click to move the chain on the big chainring.

Shifting is a simple matter of one click for easier, one click for harder, and a double click to move the chain on the big chainring.​

We tracked the progress of SRAM Red eTap wireless electronic shifting drivetrain from development to release to install. The new technology also earned a spot atop the list of 2015's Top Cycling Innovations. Now here's an inside video look at how it came to be from the SRAM folks themselves.

httpv://www.youtube.com/watch?v=PqLvdIHYk3s