It is the standard 70 & 71 Challenger wheel. The more popular woodgrain was an option. I think it cost something like $5 for the woodgrain. It looks like a bicycle wheel when it is mounted in the Dart. I wonder if the Dart didn't originally have a tuff wheel? Maybe it went bad and the Challenger wheel was the only thing that could be found that would attach to the 3 bolts. If it did not come with the tuff wheel, it would have had a blue wheel; not a black one. Is there another 3 bolt Dart wheel other than the tuff wheel?