The Pro Series Mount is geared towards more serious riders. Maybe you are out riding a century or on a cross country mountain bike loop; the Pro Series will keep your phone securely in place. Keeping the phone centered and not obstructing your handlebars is an advantage over the Handlebar Mount. The Pro Series comes with an adjustability range of -20 to +55 Degrees so you will always have you phone at the optimal viewing angle. Once again you have navigation, and ride tracking apps at you finger tips. You can also easily see any notifications that will inevitably pop up on longer rides to and quickly decide if they are worthy of your attention. The combination of the RokLock mounting system and the magnet make this mount feel incredibly secure, but you can also attach the included lanyard for added peace of mind.