Well, it's got less to do with it being on a mountain bike than it does with 1) I'm getting on towards 70 years of age, 2) I'm recovering from fairly serious cancer surgery, and 3) I have a bum knee that two surgeries have failed to fix. I'm a guy that likes to ride around and look at the scenery, not a speed or distance guy.

Also, I practically lived on a Gitane Tour de France 10-speed road bike (sew-up tires) in the mid-seventies, so I'm not a stranger to road bikes. I just haven't ridden one in almost 40 years.