10-06-2020, 04:49 PM
(10-05-2020, 04:04 PM)Cormanus_imp Wrote: flint, I've had a couple of chains that make a horrible clanking sound as I take off. Sounds like it's hitting something. It's disappeared as I accelerate, but is very annoying at low speed. When it was doing it on one trip, I took it to a dealer I passed on the way and the mechanic had a good look at it. The tension was in spec, but he oiled it heavily and it stopped. The noise came back in time and oiling helped again.
zirconxi's insight is really interesting, although I recall trying to get it to make the sound on the centre stand and failing.
If you do find out what it is, please let us know.
For my case, to make the sound, I had to turn the wheel specifically in a bike reverse direction slowly so that the chain is pulling on the worn surface of the front sprocket. After a few turn once a while the chain will move/slip slightly on front sprocket due to the worn side of the tooth. This produce the grinding and clanking sound.
Turning the rear wheel as though the bike is moving forward will not produce the sound because the chain will be pulling on unworn surface of the front sprocket tooth, nicely seated.