UNIOR Chain wear indicator - 1644/6 - 629344

The perfect tool to keep your bike's drivetrain in top condition. 

Staying on top of chain wear is important as a worn chain can cause poor shifting and wear out other drivetrain components.

Made from precision, laser cut steel.

Precisely measures 0.5% and 0.75% chain wear – wear levels where chain manufacturers most commonly suggest replacing the chain.

Three point tool design isolates pin wear from roller wear

Features QR code with video usage instructions

Works on all 6 -13 speed chains, including Sram flat top chains.

Refer to chain manufacturer replacement instructions.

General rule for replacing the chain.

11 – 13 speed chains – replace before or at 0.5% wear

6 – 10 speed chains – replace at before or at 0.75% wear

B: 29.4mm   H: 2mm   L: 178mm