How to set up your RockShox suspension in just two minutes. Download the Trailhead app on your phone from the Apple Store or Google Play. The app icon is the RockShox logo. The next step is to enter your suspension serial number. You can find your suspension serial number on the back of your fork crown. The app will bring up the description of your fork. Scroll down to the bottom of your description page and click on “tuning.” Enter your body weight and the type of bike you are riding. The recom