Hi! I have been riding for just over a month, usually 3 times a week (total of 50-75 miles/week), with no weight loss. However I do notice that some of my pants are fitting better, being just a *wee bit looser at the waist. I think it could be, as WestTexas said, that some of the tummy fat is going away and being replaced with muscle. Muscle weighs more than fat, is my understanding. (I'm 45 yrs. old, 5'6" and 150-153lbs, depending on the day/hour.