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Hi all, i have this wear indicator and i am unclear what it exactly measures. I have a 11 speed chain that i am trying to measure and it almost fits. On other wear indicator tools i see they put 0.5 % / 0.75 % / 1 % annotations on it, that would have been helpful here too.
I looked at the documentation but it is not mentioned. When i put it next to a ruler, it think the indicator length is about 89mm.
https://www.topeak.com/global/en/product/576-CHAIN-HOOK-&-WEAR-INDICATOR
On the first, dammit of course you are right. I measured the outer, and yes it is measures 95mm to the best of my abilities.
Okay the 0,75-1% gives me some indication, and seems to align with thoughts on my crosspost on the Evil-Reddit too.
Several bike websites mentioned that for 11 speed and up, one should better replace the chain when 0.5% lengthening is reached to preserve cog wear. Now I think i should take that with a grain of salt, where it likely is a conservative target. I do think i might benefit for getting a different chain wear tool with more granular indicator points.