You are reading a single comment by @gbj_tester and its replies.
Click here to read the full conversation.
-
Summoning tester
I wonder whether having the chain taught might be coupling the hub to the large mass attached to the pedals, which could act as a damper.
gbj_tester-
It's an interesting idea, but I'm not convinced - there is already an excellent connection to a decent damper (the tire).
My money is on the change simply being the pads being pushed more forcefully against the rotor - that can, and sometimes does in my experience, eliminate the rotor vibration (squeal).
c=c=c
I'd always assumed it was the rotor making the noise and I doubt the hub is twisting or, if it is, that it's twisting enough to contribute to a squeal. I cleaned the rotor and it shut up briefly but I've now taken to pedaling slowly around corners to make it shut up which is doing my head in (and makes some corners interesting!). I'll try again with kitchen scourer but I just kinda want to understand why there's a magic difference in sound even though in both cases the rotor is still moving over the pads.
I also wonder, if I stuck a 140mm rotor on the back, would it make any difference to the noise, given the same contamination amount...
Summoning @gbj_tester for some engineering input...