![Park Tool CC-3.2 Chain Wear Indicator](http://www.adastrabikeco.com/cdn/shop/products/images_{width}x.jpg?v=1617215154)
Designed to accurately indicate when a chain reaches .5% and .75% which most chain manufactures recommend replacement. Chain wear indicator is a simple go or no go tool.
- Updated to be longer, more accurate and features permanent measurement markings
- Accurately indicates when a chain reaches 0.5% and 0.75%, the points at which most chain manufacturers suggest replacement