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The Shimano TL-CN42 Chain wear indicator is the perfect tool to check accurately, easily and quickly the wear of your chain. It has a high precision laser cut construction and a unique 3-pin structure that allows an accurate measurement.
- Heat treated stainless steel
A worn chain looses the original shifting performance and wears sprockets and chainrings faster
If you use your bicycle everyday, we recommend you to check the wear of your chaine every trimester and change it when necessarily, or change it at least once a year.
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Review TL-CN42 Chain Wear Indicator