Over the last several years I've taken an interest in getting in better shape. I lost 40+ lbs, could stand to lose another 15 lbs, and started power walking...that led to jogging which led to my almost 50 year old knees protesting. So I gave it up and was looking for something to replace jogging when I was talking to someone who said riding was easy on the knees. So I bought a bike, not entry level but not expensive either, and I like it. I bought one of those odometer thingies that record distance, speed, avg speed etc. to keep track of my progress. I think my bike is adjusted properly as I haven't had anything hurting but muscles. Iv'e been at it for about a month now and feel good but I'm wondering when I should expect to start trimming down some more? I'm doing about 10 miles in 42 minutes four day a week and then 7+ miles two other days. I pay attention to what I eat and rarely go for the cheese burgers and fries. I have lost 3 lbs and feel trimmer but I thought it would be faster. Are my expectations too high?