Originally Posted by lyeinyoureye
I don't think you're required by law to always have official ID on you. That's what the whole national ID card deal is about iirc...
I figure most cops won't stop you because there's no way for them to legally verify your ID, which you don't need to carry because on a bicycle you can't do as much damage as a car.
In DC, if you commit an infraction (of any kind, doesn't have to be a bicycle) and you can't produce ID, you will be detained until your identity can be established. Different places have different policies.