than your name and address, and several states mandate government issued form of identification, much as you would use to fly. And what if you do not have such government-issued identification on your person when stopped on your bicycle for blowing through a stop sign or making an illegal and unsafe turn ? The trooper or sheriff can take you into custody ! That would really ruin your ride.
As suggested in prior posts, always carry an emergency first aid kit, money, cell phone, and a form of official identification. I have an expired drivers license in my little bag, as I do not want to lose my current operators permit, but I want something official, with the same number on it so that an investigating officer, could type my information into the computer, if necessary. Because state laws vary, it is probably a good idea to carry a form of official identification so as to avoid misunderstandings and compounding a ticket with incarceration. Bikers use the public roads. Those who use the public roads, whether trucks, mopeds, busses, motorcycles or bicycles, are subject to the traffic laws, just like cars. If you violate the law, you can be ticketed, questioned, fined, given points and even lose your driving privileges. So the smart move is to carry appropriate ID on you when riding for fun, training, touring and commuting. Your identification can be an asset if there is an accident, an infraction and if it is required to make a purchase.