Park Tool Chain Checker

  An accurate way to check for wear of roller and pin on chains1% of wear is enough to affect chainrings and sprockets and allow shifting performance to deteriorateJust insert the chain Checker's pins into two links press the swing arm gauge and then check the gauge window for an accurate readingReads wear from 0.25% to 1%10-speed compatible

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Product GTIN: 00763477001313