KMC Digital Chain Checker
The KMC digital ChainChecker is the most accurate tool for checking your chain’s elongation. Made out of Stainless Steel for durability and for long lasting. The KMC chain checker chain measures any chain from single speed all the way to 11 speed and will measure any drivetrain whether its sram, shimano or campy. This is the more precise way to make sure your get the most out of your chain and also to replace it when needed. Replacing your chain on time insures your don't wear out the rest of your drive train, which an mean serious money down the road. Also with 1x setups it is important to replace your chain when need to prevent chain drop.
Measures up to 2.5mm elongation