Dynamic Double Checker Chain Wear Gauge

The Dynamic Double Checker chain checker is a pocket-sized, laser-cut aluminium tool for checking chain wear and brake disc thickness. It tells you precisely when to replace your chain and discs, before a worn chain snaps or an excessively thin disc compromises braking.

It is compatible with 7- to 13-speed chains, including SRAM Flattop, Shimano and Campagnolo. Dedicated measuring slots cover SRAM, Shimano, Campagnolo, Magura and Hope discs: choose the one for your braking system. The integrated hook holds the chain in place during installation, while guides printed on the tool save you looking for the manual.

Established in the 1980s within a German distributor, Dynamic is now based in The Hague, Netherlands. It offers cleaners, lubricants, waxes, greases and tools to care for your bike, from everyday rides to weekends on two wheels. It has operated independently since early 2020.