Old 07-31-19 | 08:22 AM
  #10  
silverado8405
Senior Member
 
Joined: Sep 2014
Posts: 86
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From: Wisconsin

Bikes: 2007 Trek 820, 2014 Fuji Gran Fondo 2.1

https://www.sheldonbrown.com/chain-wear.html

Scroll down to the section titled Measuring Chain Wear to find all you’d ever want to know about when a chain is bad and how to gage it based on what you’re measuring with the tape measure. Keep in mind you’ll need a tape/ruler longer than 12” to be able to measure the wear.
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