Originally Posted by HillRider
First, the crank arms are aluminum and the bb spindle is hardened steel. The crank arm is very unlikely to scratch the spindle.
I used bad wording, I guess. It was the paint that the crank scratched off, not the metal of the bb.
Second, a poorly fit crank arm will distort by having the square hole get too big, not too small.
Yeah, that's what I thought...