At 42 and 300+ lbs, and having recently recovered from a spinal fracture, I decided to try cycling again. I had been out of the saddle for close to 20 years and on my first ride I thought I was going to wipe out for sure. It's true what they say - once you learn how to ride a bike you never forget, but I sure didn't remember it making me so nervous or hurting so much, especially my butt and knees. That was last spring and today I commute to school everyday and whenever I run errands I try to do so on my bike even though people look at me funny for riding my bike in the winter. My butt doesn't hurt anymore (and I've even got a skinny-person saddle now) and my knees don't bother me nearly as much. I am looking forward to this spring so I can get out there and really rack up some miles.