Dual Sport - Plating the XR650R in Massachusetts! Email from the Registry November ’05. "Thank you for contacting the Registry's website with your question. After you have the motorcycle converted you will need a letter from one of the Massachusetts motorcycle inspection sites on their letterhead stating that the bike will pass inspection. To register the bike you will need proof that the person who sold you the bike owned it. A bill of sale alone is not sufficient. If the bike was used for off road use you will need the owner's last certificate of registration and a bill of sale, plus a completed RMV-1 form (application for registration and title) stamped by your insurance company. Once you get the bike registered you have seven days to get it inspected."