Explore the Tredz Bike Care RangeThe Tredz Chain Wear Indicator Tool is a simple but effective tool that allows users to quickly and easily determine whether their bike chain has become worn beyond its recommended replacement point. The tool features two pins that are inserted into the chain, and a gauge that measures the distance between the pins. The Tool Indicates 0.75% wear, which signifies its time to consider a new chain or 1% wear where a new chain is required to ensure drivetrain efficiency.Using the Tredz Chain Wear Indicator Tool is straightforward. The user simply places the tool on the chain and aligns the pins with two links. They then check the gauge to see whether the distance between the pins is within the recommended range. If it is outside of the range, it indicates that the chain has stretched and needs to be replaced. Suitable for all chains.