I heard about the cycling class at California Fitness is getting very popular. I have seen people sweating in the bicycle room many times already. So, I think I was going to try it one of these day. And, boy what an experience. A crowdy room full of people. Up and down. Riding and riding away. Screaming and yelling (by the instructor). Loud music. After 45 min, was I exhaused!! Overall, a very good workout experience. I am refreshed after the long bike cycle.
California labeled their workout class as "Schwinn cycling". Looking up the web, Schwinn is actually a 100 year old bicycle company. And, the stationary bicycle for workout is very durable and stylist.
Schwinn Bicycle web site.