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How to tell if chain ring is too worn?

This topic has 2 replies, 3 voices, and was last updated 13 years, 3 months ago by DSalovesh.

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January 17, 2012 at 4:10 pm #934711

CCrew
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They start to look like shark fins…they pretty much lose their symmetric points.

https://www.google.com/search?q=worn+chainring+picture&hl=en&prmd=imvns&tbm=isch&tbo=u&source=univ&sa=X&ei=dZ0VT7esEObY0QG544jyBg&ved=0CCMQsAQ&biw=1280&bih=777

January 17, 2012 at 4:56 pm #934716

DSalovesh
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Hang a chain over the chainring. Tug on the chain at the top.

If it won’t come up much the chainring is good. If it comes up a little, not so much but it will probably work fine for a single cog rear if the tension is right.

If it comes up a lot the chainring is shot.
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