Park Tool CC3.2 Chain Wear Indicator

Park Tool CC3.2 Chain Wear Indicator Chain wear or stretch can cause a significant drop in the performance of your bike; as well as potentially speeding up the damage of other components. Therefore; you will want to prevent your chain from reaching this point by regularly checking it with the Park Tool CC3.2 Chain Wear Indicator. Constructed by laser cutting steel; this lengthened version covers more of the chain to give you better accuracy of the measurement. There are two indicators for 0.5% and 0.75% wear based on when manufacturers recommend replacement. As soon as you see the 0.75% side fits into the chain you will want to replace it before it can increase the wear on other drivetrain components; or affect performance.