Weight loss through biking
got an email from a friend the other day giving me an update on what she's doing with her summer. She has gotten really into spinning classes, going a couple of times a week and then some various exercises on other days (weights, etc). But one of the last things she wrote was that despite all of the exercise she's doing and being conscious of what she's eating that she has been gaining weight.
I then thought about some of the mountain bikers I know, and a lot of them while they are faster and stronger than me, do not have the thin athletic body type.
So my question: Is biking actually a good form of exercise for weight loss? Is it the kind of thing that will bring you down to a certain point, but then you have to try something else to get those last few pounds gone? Or is it just the mtn bike vs road bike thing? Mtn biking just not giving as good a cardiovascular work out?
note- I love to bike, and I don't really need to lose weight, this is just something I started thinking about because of my friend.