Spector Bike Roller Adjustable Bicycle WhiteDESCRIPTIONStart simple. Place your bike roller between your door frame. Wear runners, not bike shoes. Put your bike on the roller frame and use the door to hold yourself upright. Soon you will get the hang of indoor cycling. Cycling builds muscles. You can cycle inside while watching a movie on your bicycle roller. You can cycle indoors while holding your phone and reading. Just work on your balance first. Practice really makes perfect with your bike