If you love a quick, sweaty HIIT session, you might be apt to hop on a full body option like the Assault (or air) bike. If ...

The Assault AirRunner is available to buy now directly from Assault Fitness in the UK and the US for £2,999 or $3,699. Looking for a cheaper or smaller treadmill? Maybe one that is cheap and small?

The Assault AirRunner is unlike anything else on our list of the best treadmills. Its non-motorised design and ballbearing-powered curved running deck respond to user input, meaning flitting ...