If it wasn't for Spinning classes, I would never have considered getting a road bike. It was those classes that made my much loved bike unacceptable for me to ride...I was too upright and it was too heavy and slow. I know that I've gained a lot of strength from Spinning and I love it so much that I'm in the process of becoming an instructor. That said...I can't live my life in the gym and I can't wait to get out on the road...or the bike trail for now...lol.