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COMPATIBILITY: This chain checker is designed to accurately measure when the chain reaches a .75% or 1.0% stretch and decide the necessity of chain replacement. Compatible with 7 to 12 Speed Chains including for Shimano Sram Campagnolo KMC and other brands.
High-quality and compact: Made with precision laser-cut technology and durable materials, this tool is designed for longevity and convenient storage. This 2-in-1 chain wear indicator is the perfect choice for those still in search of a reliable chain checker. Dimensions: 140mm in length and weighing just 32.8g.
EASY OPERATION: Simply place the checker onto a segment of the chain then see whether the chain checker lies completely flat on the chain. If so, replace the chain. However, the chain is still good to use if the chain checker sticks upright at the 0.75% end.
WHY YOU SHOULD GO FOR IT: As a consequence of the chain wear, increased wear of expensive rear cogs and chainrings will eventually appear. Therefore, routine checking for chain wear can prevent problems with shifting performance, and getting the worn-out parts replaced is more economical than a full change and saves bucks efficiently.