I only remember back when men were men and cranks had square tapered spindles. I bought a bike online and the cranks are binding. I took the left arm off and the binding stopped but I don't see any adjustments. I don't think it's a good idea to loosen the bolt, right? I assume it has to stay good and tight and I need to fix rhe binding some other way. The right bearing cup appears to have 2 fat spacers under it, which might be for the chainline, but I don't see any way to adjust anything.