Unable to convince myself one hundred percent

I bought the mount for my Smartphone for my two wheels. The assembly and the change from one to the other wheel is a clunky affair. Only by means of allen key you can move the hard to reach screws. When driving on uneven ground rattles the holder. Not much, but it sucks. By sticking a gum I could rid the world. The criticized in other reviews additional holding rubber in my opinion is not absolutely necessary. The smartphone also has as sufficient support. Very good are the settings for good view of the phone. It pretends, even in poor Because nothing by itself.