Clever Measurement Tool: A worn chain can make shifting difficult and damage the drivetrain quickly. The chain checker contacts the chain in three positions skillfully to indicate the chain wear easily and quickly, which can protect the drivetrain better
Wide Compatibility: This bike chain tool is a plug in gauge that matches any 5 to 12 speed derailleur chain and is designed to indicate accurately when the chain reaches 0.5% and 0.75% wear, which is the point that most manufacturers recommend replacing
More Accurate Measurement: The overall design of this chain wear indicator is longer, so that there can be enough samples to obtain more accurate measurement data, which can meet the needs of most cyclists
Durable Quality: The bike chain checker tool is designed with harsh usage environments in mind and is made of high quality stainless steel, which is more resistant to oil and corrosion. Chain wear tool with robust and stable materials provide superior durability for long term service
Check Anytime Anywhere: The stretch of the chain is difficult to notice visually. The chain gauge tool can detect the chain at any time that check whether your drivetrain in good condition. We offer a 100% satisfaction guarantee