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cmyj
Yo. I have a set of square taper Middleburn Duos I'd really love to use. The non-drive side arm is fine but the drive side has a sort of elliptical rotation. Hard to describe, but a bit like a buckled wheel. Pedal swap and BB swap haven't solved the problem.
Presumably it's wear on the taper (they were ridden loose briefly). Any way to know for sure the cause, and mitigate?