Review on Optimized Park Tool CC-3.2 Chain Wear Indicator Tool by Gary Duncan

Probably 30% longer than other brands chain checker I have. I bought this because my other only checks 0.75 and 1.00. This other works well for single, 6, 7, 8, or 9 speed chains, but for newer 10 and 11 speed chains the replacement spec is 0.50 chain wear. This Park Tool CC-3.2 chain tester will test both .75 and .50 which will cover multispeed bikes but not necessarily single speed chains. I mean you can still change the single speed chains earlier at 0.75 instead of wearing them down to 1.00 so you can still use those as well.