hey guys, new to the forum. i recently picked up 2 bikes one was a 1980 And the other, which is a 71 on the registration but when i research the bike on the net everything says its a 72. the reggie, frame and motor numbers match, but the reg says its a 71. its the classic red and white model. i picked this bike up a few miles from the canadian border. does anyone know if there is any difference from the u.s.a. bikes and canadian bikes? thanks!!