Dynamic Double Checker - Chain & Rotor Wear Checker

The Double Checker is a pocket-sized, laser-cut precision tool to accurately check chain wear and rotor thickness.

Features

• Made for all 7-13-speed chains, including SRAM Flattop chains, Shimano and Campagnolo.
• Exact rotor-thickness readings with brand-specific measurement slots: SRAM, Shimano, Campagnolo, Magura, and Hope.
• Anodized aluminum is light, strong and Dynamic purple.
• Guidelines displayed on the tool, no need for a handbook!
• Clever chain hook makes chain handling quick, easy and safe.

With the Double Checker, you know exactly how worn your chain and rotors are. The Double Checker measures true pin wear, which is the most relevant measurement to have.

Separating pin wear from roller wear gives a more accurate result, enabling you to know the exact state of your chain. The rotor check, built-in chain hook and ruler make the Double Checker an unmissable tool in every cyclist’s toolkit.