Oh man. I just put my 350+ pound carcass on a bike and tried to ride around my neighborhood. Boy, do I suck at it! I couldn’t climb even the most gentle of hills – and ours are very gentle! – and I only lasted for about 10 minutes. I’m sure it couldn’t’ve been longer. I really am in bad shape! I thought riding a bike would be easier and more fun than walking, but I think I was wrong on the former!