Motorcycle Bill Of Sale Form If I Have A Bill Of Sale For A Motorcycle, Do I Still Need A Title?

If I have a bill of sale for a motorcycle, do I still need a title? - motorcycle bill of sale form

I buy this type of motorcycle, said the final contract, but no title. When I make a purchase for my purchase, and keep the old ones, they have to go to DOT and get a title for the bike?

Thank you.