Here's everything you're doing wrong in your indoor cycling class
But many indoor-cycling enthusiasts make simple mistakes that can lead to serious injuries.
Getting hurt could keep you off the bike for weeks, says Brittney Ravettine, a physical therapist at New York Sports Med.
We asked Peloton's head coach, Stephen Little, to demonstrate some of the worst postures and positions - and give us some tips on how to prevent injuries to the knees, hips, and back.