It's not quite the way you describe it, Mike. The "roads" in our cities are actually public space, owned by us all. They are spaces for people. This has been the case since the beginning of cities. Automobiles are a relatively new appearance on urban streets, enjoying the paved streets that resulted because - wait for it - BICYCLISTS led the fight for better roads. Cars and trucks create infinitely more damage to our streets - our shared public space - than bicycles ever will, and they subsumed public space that was previously the domain of people on foot, bicycle or horse, creating a congested, dangerous mess in the process. So no, bicycles don't need to pay for maintenance.