Your motorcycle is an extension of your home, just like your car. As far as I know, It's legal to OC on a motorcycle through Denver, as long as you stay on the bike. I ain't no lawyer though! I would look at the CRS first. I have a bike too, I have not OC'ed while riding a motorcycle yet. I just finished rebuilding the motor and will be riding it for the first time when it warms up. I would think you will get grief from Denver's finest for OC'ing on your bike.