Shimano Di2 represents the start of a huge shift for the bike industry. Other cycling manufacturers had previously experiment with electronic gears, but Di2 was the first widely embraced electronic groupset which is why we've included it as the next crucial innovation in our Shimano Seismic Shifts series! Join Ollie as he takes a look at the first ever Di2 groupset throwing back to Dan's Cervelo Test Team days! | Global Cycling Network