I suppose they would be a bit noisy since the fit together loosely to allow folding.

That said, One needs to make a choice....utility with a bit of noise...or...utility with no noise
but a fat butt rear profile all the time. You money your choice.

I've got an older pair that were Schwinn branded that rattle very little but dear wife would
hurt me bad if I took'em off 'cause of a little noise.