I was hoping you guys could shed some light on the science of sizing tires. What makes a certain tire size right for a bike? And can you please explain why slapping a big, fat, wide-as-will-fit tire ...

The choice is bewildering and it’s led to rumours of an industry conspiracy that ‘they’re just trying to sell us more bikes!’ But is this true? And does wheel size even matter? Read on to find out.

For the third time in mountain bike history, there is a chance for riders to increase their wheel size – with the introduction of 32in wheels looking almost certain for cross-country racers in 2026.