Park Tool Chain Wear Indicator 142379
Park Tool Chain Wear Indicator 142379, PARK TOOL CHAIN WEAR INDICATOR A worn chain shifts poorly and wears sprockets at an accelerated rate. The CC-3.2 is a "go-no go" gauge designed to accurately indicate when a chain reaches .5% and .75%, the points at which most chain manufacturers suggest replacement. The updated CC-3.2 is longer, more accurate and features permanent measurement markings.FEATURES Quick check of chain wear