Now I could be wrong here Ed, as it's actually a bit hard to verify this due to that Betty Grable-esque little cutie positioning herself right in front of "the heart" of that motorcycle, but I think you may have another problem here other than the obvious one of explaining to Judy why you overlooked said cutie completely and only had eyes for that "british bike".
Well, like I said, I COULD be wrong here, BUT from what I can see of that old motorcycle, and especially because of it's Earles front end, it appears that machine is actually GERMAN and not british, as it appears to be an old BMW R25 single such as this....
