Originally Posted by waytoomanybikes
What site is this - because frankly, even that number seems high.
I agree, when racing mountain bikes with an average heart rate of 168 bpm I only burn 1460 calories in 2:09. I don't burn anywhere close to that many calories an hour on a road bike. On a three hour road ride going 43 miles with a lot of climbing I only burn 1,860 calories.