A blindfolded dart in the air;
Could a spacer mistakenly still be in the hub? (I've had a spacer that was not cut for the cassette rivets causing a barely noticeable wobble and similar badness).
I hate noise from the bike. Today my front hub started rattling on a downhill. I braked to a stop and the rattling was there when I bounced the front tire and it took a long 30 seconds to find the bottle cage was loose.
P.S. I'd try a different chain.
Last edited by BTinNYC; 06-05-22 at 03:36 PM.