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Drive chain wear sticker

Posted: Wed May 06, 2020 11:58 am
by cross
Hello everyone,

I cleaned my chain the other day and noticed that the wear indicating sticker is on the birder with green and yellow. Is this passed due for replacement?
Second, my chain has 108 links and I read that it should be 108 and 102, which is it?
When I bought bike it came with extra new JT rear sprocket with 36 teeth. I don’t know what’s on it now but according to the posts, should be 42 tooth sprocket.

Thank you
Sasha