There's a wealth of online spin classes to get your indoor cycling fix, with everyone from London and Oxford-based studio Digme offering daily live spin classes online, to pre-recorded workouts with spin experts Peloton. Most at-home spin classes you can join no matter which brand of spin bike you have. And the best news? You only need one piece of equipment to join in - a stationary bike with a selection of gears so you can alter the resistance throughout the class. For a low impact workout that builds lean muscles, torches up to 400 calories a session and delivers a hefty hit of endorphins, you can't go wrong with an online spin class.