Discussion Starter · #1 ·
If unfixable, I can always take a cutoff wheel to it. Maybe we’ll find a half melted Pepsi can tab in there.Looks like "Stress Corrosion" to me. Caused by a manufacturing defect, impurities in the casting. They're cracking there because that's the highest-stress area for the wheel. If you sectioned the wheel (cut it apart) at the crack I'd bet there'd be "inclusions", solid particles of some other metal that shouldn't be there.
Not necessarily. A defect in the casting could do the same thing without any kind of "major" hit.That had take a hit to crack the aluminum in the thick part of the spoke. And even both of them.