Quote:
Originally Posted by -Ralph-
Anyone who disagrees, don't bother arguing with words on a forum, just post me a video of a wheel with discs and no tyre or valve, which has a heavy enough imbalance in it to rotate itself on a static wheel balancer, and settle itself with the heavy point at the bottom on it's own. You'd better have a lot of wheels, or a real Friday afternoon wheel where the aluminium didn't flow through the cast properly, to find one that lets you record that video.
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I'm not interested in arguing or videoing it, but I've had one like that.
No idea why, I would expect if casting flow was a problem then there would be cold shuts etc. My guess is bits breaking off the cores used to form the hollow sections leaving a lump inside.