The Rebel is a great bike. I bought my used ´04 in March of this year. So far, I have put on about 200 miles. Hey, I live in Chicago, and March has been cold. Anyway, I have had it up to 45 mph. In Chicago, there are few hills and no mountains. I think it could do what you ask of it. But one must remember that in the mountains, your air is thinner. I have no idea what thin air does to a Rebel´s performance.