Shimano’s wireless shifting mountain bike group is finally here, and there’s a ton to absorb. To keep our XTR Di2 tech story from crashing your browser, we’ve created a second post here to go over the ...

Shimano released a full suite of wireless mountain bike drivetrain components back in June. Much has been written about the release of XTR, XT and Deore Di2, but how do they compare in the real world?