>>1269888Trust me, I realized the hard way. I went out unconditioned in 30f weather thinking I was going to have fun. FUN. I made it around the block before I thought I'd fall off the bike. I have a long way to go, but I'm determined. I quickly realized that as a kid I rode for leisure and transport, its a lot harder when you're trying to exercise and 'go fast'. But honestly that 20 min ride made me feel awesome. I didn't feel tired all day like I usually do on weekends, I was talkative and felt fresh. I'm going to keep at it. I want to do races and events, I want to cross train, I want to be really healthy for the first time in my life.