just picked this up tonight. it is a wings highway patrol whizzer. the guy took it apart found out the crank was 5thousandths out of round and lost interest. he painted the frame,wheels, and cleaned the engine cases and painted them. it has a worksman heavy duty rear wheel with huge spokes! i picked it up for $400bucks so i didn't think i did too bad considering i got an extra embossed tank with it. those go for an easy $125 on fleabay!. i will just have to deal with the crank and see where i can get it turned. he checked around but no one wanted to do it. can anyone tell me the year of the bike by the serial number? it is on the bottom of the crank housing-20 42 F1.