We really do have two kinds of cyclists, and we're unjustly forcing them to follow the same rules. We chose to treat bicycles more like cars than like pedestrians, to the detriment of less-capable cyclists who care to follow the law.

We probably ought to offer and require license plates (tags) for people who wish to ride with the cars. Licensing would be as for a motorcycle, plus a requirement to demonstrate speed and acceleration. The plates could be colored by performance, indicating what roads may be used.

Unlicensed riders, plus those not displaying their license plate, would have a low speed limit and would be restricted to low-speed roads. They would also be allowed on sidewalks as long as they are going slow.