The SP Connect™ UNIVERSAL BIKE MOUNT can be attached to any handlebar or stem with a diameter between 22 and 32mm (0.9-1.32 inches). If you use the mount with the arm, you can adjust the angle of your smartphone. Without the arm you have very a low-profile mount. With or without the arm your phone can be used in a horizontal or vertical orientation. Your smartphone can now safely be attached to your bike with a 90° turn. You now can easily navigate or use your other apps.