Cragar Super Tricks, the original spun aluminum drag race wheels. They are two halves bolted together with ordinary hardware, which makes me think they might flex and or fret there, or possibly fold up under heavy side loading. they are marked for racing use only, that could be just a disclaimer or it could be good advice. I ran mine on the street occasionally long ago, I want to put a set on car now that will get more street miles and I'm wondering how durable they are, especially after the things I've heard about Flys. Any evidence out there good or bad?