With the Birzman Chain Wear Indicator, you can quickly and reliably determine chain wear so that the chain can be replaced in time. Chain wear is not obvious, but it has a negative effect on the durability of the sprockets and chainrings so that they also have to be replaced earlier.
The chain checker shows a chain elongation of 0.5, 0.7, and 1.0%.
Compatible with 1 to 12-speed chains.
