I just purchased a 450 Ducati at the Mid Ohio swap meet and am not sure of the model or year (may be a 1970 - 1974). The bike is yellow w/ a black stripe and has been used as a flat track racer. I thought this web site might help however, there are VERY few pictures of any of the bikes listed...What´s up with that???? How can you rate a motorcycle w/o seeing it? Are you guys for real or what?