Dynamic Double Checker

Dynamic's Double Checker is a must-have tool for cyclists who like to keep an eye on their bike's wearable parts and know when they are due for replacement. With this simple tool, you can easily tell to what extent your bike's chain and disc brake rotors are worn and decide whether they are due for renewal, which will help save maintenance costs.

Avoid high servicing costs!
The Double Checker will help you make sure your bike is always in top condition. If you use it regularly, you can replace worn parts on time and avoid unnecessary wear on your cassette and chainrings. This will not only extend the life of your bike components but also reduce or even help prevent maintenance costs. If disc brake rotors are too thin, braking power will be significantly lower than with thicker (new) discs. So, to avoid unreliable braking performance and dangerous situations, checking the disc brake rotors on a regular basis is essential!

• Compatible with all 7- to 13-speed chains, including SRAM FlatTop chains.
• Compatible with most disc brakes: SRAM, Shimano, Campagnolo, Magura and Hope.

• Before checking for wear, make sure the chain is clean AND you haven't already applied new chain wax or oil. This way, you will get the most reliable results.