I am competing in the MASS (Mid Atlantic Super Series) Mountain Bike Series and need help with a climbing question. I weigh 205 lbs and obviously can't comptete with lighter riders on hills. My question is - is there a mathmatical way to figure out how much faster you can go if you lose x number of pounds? In other words what how much faster can a rider who is 180 lbs go than someone that is 205 assuming the same leg strength, etc.?