RE: Hangar 9 Mustang 150
I order the 4" aluminum 10 spoke wheels direct from Robart. They make the wheels on demand. I have ordered 2 sets in the past. Had about a 2 week wait on one set. The tires are solid and you have assemble them. They track excellent. Look Awesome!
4" is the max that you can open the wheel well. I had to sand on the Rib a bit to keep it from hanging up.
Not Cheap! but are worth it. I have them on both my hanger 9 birds.
Jeff