In our Tech Q&A series, we tackle cycling queries – big or small, complex or simple – with insights from the BikeRadar team and trusted industry experts. Next up, a reader wants to know if it’s worth ...

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?