Stage 6 - Palmdale to Big Bear Lake - 186.3km

Zwift has revolutionised indoor cycling, offering a host of training options to get you fit. Here is your ultimate guide

We test the best heart rate monitors for tracking your heart rate comfortably, consistently and accurately when cycling or working out

Hour-long film provides powerful, if patchy, insight into victory in the most turbulent Grand Tour of the 21st century

Indoor training doesn't have to be boring - make the most of your tech and stay motivated while riding indoors