I bought a mountain bike in order to get into shape. My goal is to lose 25-30 pounds.
Assuming I can ride 4 or 5 times a week, how long should I aim to stay on the bike (at a MINIMUM) in order to see some reasonable results. I'm not expecting to lose 15 pounds a month or anything, but I would like to see a noticeable difference by September.
I will be riding a relatively flat, packed-gravel trail, with a goal of maintaining a good cadence, rather than a particular speed.
So, when I head out the door, how long should I expect to ride before I can return home without feeling guilty?