Dirt Tricks DT-CWG Chain Wear Guage

Dirt Tricks chain wear gauge is a very simple tool to determine if your chain has reached its wear limit and should be replaced. Chain's replacement wear spec for 520 chain is 10.099? between 16 pins. How is works:. Put your bike in gear and roll it backwards so the top chain gets tight. Hook a roller with the hook end of our tool and drop the indicator tip down onto the chain. If the tip of the gauge does not fit, its time for a new chain..