FWIW, I have 23,000km on my belt and it shows almost zero wear. I biked from the US, into Canada, back to the US, and then through Central and South America on it. No snow, but plenty of rain, sun, dust, sand, salt, etc. I carried a spare belt in the back of a rear pannier. I saw a video online showing a guy replacing his belt. It was missing sections of 'teeth' and was on a lot fewer miles than mine. Not sure how he managed to mangle it so badly, but mine looks like it will just keep going. I'm actually quite curious how it will actually die when its time comes. Perhaps just splitting from getting brittle with age?
If yours looks fine, with no cracks in the material indicating some failure of the composition of the thing, I'd just ride it and not worry about it.
Last edited by DanBell; 06-13-19 at 05:18 PM.
Reason: Typos