I installed the mount on the stem of my road bike. For better fixing and protecting the gallows, I put between the straps and jib a piece of rubber of a used tube. Thus, the support does not move. At first all went well but after a while he began to have the game between GPS and its support, had, I believe, to a weakening of too poor quality plastic. One day on a road not in very good condition, GPS has simply skipped. Replaced, he held a time and he jumped again, this time at high speed on a good road. Fortunately, the device is protected by its silicone case. Now I am forced dattacher GPS, in addition to its setting, with the strap on the bracket, to have a minimum insurance that I do not lose.
To sum up: - Very bad plastic - Very high price for the quality provided