Crafted from high-quality steel, our chain wear indicator is built to last. Its sturdy construction ensures accurate measurements and long-lasting performance, making it a reliable tool for all cyclists. With its ultra-precise design, our wear indicator accurately measures chain wear to determine the optimal time for chain replacement. This helps prevent premature wear and tear on your drivetrain components, saving you money and ensuring a smooth, efficient ride. Simply insert the tool into the chain and push it forward. The indicator will clearly display the chain wear level, making it simple for even novice cyclists to assess their chain's condition. Compatible with a wide range of bicycle chains, including mountain bike chains and road bike chains, our chain wear checker is a versatile tool that can be used by cyclists of all levels. This tool tells you when your chain has reached .75% to 1%.