—$12.95

Quickly and accurately determine the wear and stretch of any chain. 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 Park Tool CC-3 Chain Wear Indicator Wear Indicator UPC: 763477001344

by Park Tool

—$17.38

The Park Tool CC-4 Chain Checker is a drop-in style gauge that measures bicycle chain wear. The laser cut CC-4 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of determining when chain replacement is necessary. The tool works on any 5 to 12-speed derailleur chain (including SRAM T-Type, SRAM Flattop, and Shimano XTR 12-speed chains) and is designed to accurately indicate when a chain reaches 0.5% and 0.75% wear, the points at which most chain manufacturers suggest replacement. 5-to-10-speed chains: replace chain at or just before 0.75% 11-to-12-speed chains: replace at or just before 0.5% Check with manufacturer for specific replacement instructions Park Tool CC-4 Chain Wear Indicator Wear Indicator UPC: 763477001351

by Park Tool

—$28.95

Quickly and accurately determine the wear and stretch of any chain. Compatible with all bicycle chains For modern 9 and 10 speed chains, replace chain at or just before the 0.75% readings For 11 speed chains, replace at or just before the 0.5% reading Insert the Chain Checker's pins into two links, press the swing arm gauge tight, and check the gauge window for an accurate reading Park Tool CC-2 Chain Checker Wear Indicator UPC: 763477001313

by Park Tool

—$125

The KMC Digital Chain Wear Indicator provides a quick and accurate way to assess the condition of your bike chain. Its digital display offers precise measurements, helping you determine when it's time for maintenance or replacement. Compact and easy to use, it's a valuable tool for cyclists looking to maintain optimal performance and prolong the life of their chains. Fits all chains including 11-speed Measures up to 2.5mm of elongation and displays measurement on the digital screen Stainless hardened metal body for durability Provides quick and accurate assessment of bike chain condition Compact and easy-to-use design Digital display offers precise measurements for maintenance or replacement timing KMC Digital Indicator Wear Indicator UPC: 766759000011

by KMC