relative term to be sure. I was shocked to see a wheel shop on the edge of a very rough part of town. The place was like a black lung disease coal mine. The price was unbelievably low and their was not a dust mask or respirator in sight. Your 13''s look fine and it's hard to know if this is a for sale or truly info wanted posting. It would not cost you a bunch to pretty them up with your own elbow grease to be sure, but at the end of the day you have uncertainty as to how safe they are. Their are several threads about the lack of 13" tires, and the only ones have a cluttered sidewall and a all season tread, just what you want on a Tiger
These are worth the most to a guy who has the smaller spinners if these are the proper center size. They are also good as a display set of rollers.