...don't know how many I am burning!? Hi, I have an exercise bike that calculates pulse, calories burned, miles per hour, and distance. I also have a treadmill outside in my GYM but my bike is indoors and I can watch TV while I exercise to keep me entertained so I like to do that most. However, it does not have a weight input thing like my treadmill does. In 9 minutes, it said that I burned around 60 calories when on a treadmill with my weight input, it said I burned maybe 20-30. I am on the smaller side (107 pounds and 5'3") and it takes us more work to burn calories than someone with more weight. I think that the exercise bike is set for a person around 150-200 pounds or something, because in one hour it said that I burned 600 calories on the bike. Ha! One hour on the treadmill is around 200 calories! Is there any way I can figure out how to change the weight or calculate calories burned on my bike? The treadmill is terribly boring... by the way, it is a Pro-Form whirlwind dual action bike. Please respond soon! Thanks all of you!