I've searched google and found several articles supporting the fact that you are indeed burning calories riding a motorcycle.
However, there is no option for "riding a motorcycle" in the diary choices on this site. So I wanted to share this website with other bikers, so you could enter your "riding" into your daily dairy.
> Go to this website:
http://www.caloriesperhour.com/index_burn.html
> fill in your weight, and the amount of time spent riding (hrs/minutes)
> click on "ACTIVITY CALCULATOR"
> in the search area, type in "MOTORCYCLE"
> click on where it says, "RIDING SCOOTER OR MOTORCYCLE"
> click "CALCULATE"
** For a person of my weight, I burn 272 calories per HOUR!
Using this calculator, I found out that I actually burned 3,266 calories this weekend on a 2 day trip to the mountains (over 500 miles on the bike). I sweated my rear off in near 90 degree temps, drank tons of water, and "manhandled" a 600 pound bike through the mountains and on the interstate. Yes, I was "riding and sitting" the entire time, but the fact that I was out on the bike and not sitting on the couch makes my weight loss goals much more FUN.
Here's a few articles that lay out the ways that you are burning calories:
http://www.weightlossblogger.org/2010/02/riding-motorcycle-can-burn-calories.htmlhttp://blog.leatherup.com/2010/05/11/motorcycle-riding-burns-calories/http://www.google.com/search?q=burning+calories+riding+a+motocycle&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
Hope this helps some other avid bikers out there!!
Pixie