looks like a 16 inch 3.5 inch wide 40 spoke.made in italy(radelli?) with disc brake hub carrrier g/c $175 great for sidecars gord.barr@sympatico.ca
Hi Gord, I can probably find you the other two wheels and even a motor reasonably priced, you have to glue it together though. Paul.
A picture is worth 20 words.
Paul
How did you manage to nail it to the wall, remove a spoke? 
what you got there harley wheel
Sure looks like a H#rley rim. They fit the Norton rear hub quite nicely.
Paul