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WSERE Chain Checker Bicycle Bike Repair Kit Chain Wear Indicator Gauge Repair Bicycles Bike Tool Kits, Compatible with All Chains : Amazon.ca: Sports & Outdoors
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Bicycle Chain Wear Checker Measurement Indicator for All bikes - Black | Bike Accessories | Other | Accessories | MMOBIEL
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Chain wear tool...What does the .75 and 1 mean on each side. Bonus points for if the holes in the tool do anything : r/bikewrench
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