Originally Posted by
IthaDan
I never thought about it, but do cartridge BBs have the same precession problem that loose ball BBs have?
The bearings aren't contacting a cup that's threaded into the frame...
For external BBs you're back at square one, I'm talking about square taper/octalink/isis/whatever cartridge bbs here.
Well, there still is bearing precession that's wanting to turn the whole cartridge shell, but it's causing the adjustable threaded cup/ring to tighten, so the fixed cup isn't going anywhere, since the cartridge shell is rigid.
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