The goal you have is tough, but doable. The one thing I would add is to include a good amount of weight training to your exercise program. Bicycling is extremely effective at burning calories, however, weight training can do a better job of changing your appearance, especially in the upper body. Also, keep an eye on the long term. It's fine and dandy to lose 60 lbs by New Year's day. Before I had lap band surgery, I had lost 100 lbs--twice.