It’s the announcement that many of us have been waiting for ever since Shimano released their first electronic groupset in 2009 - yes, that’s right, Shimano 105 Di2 is finally here! The ‘groupset of the people’ has gone wireless, and 12-speed too! Si took an in-depth first look at the new groupset and explains how it weighs up against Dura-Ace and Ultegra. | Global Cycling Network