So I put it on for mountain biking, not even a super bumpy trail, the part hold the phone is pretty tight, the thing is, the whole case started to shake and move down, so end with my phone was facing The ground, I tried to tighten it and put it in different spot or position

my thumb while riding through the bumpy trail due to bouncing.

I have taken it on some rough trail rides and the phone stays put

This holds my samsung phone securely and easily while I am out mountain biking on gentle trails.

as soon as the trail get bumpy, it started to move again, so I had to stop to adjust several times

Worked great, even on bumpy trails

but I went mountain biking with it on a rough trail and it held up. without budging

Holds your phone without worry even on bumpy trails

Holds my phone in place even while riding bumpy trails.

I used it on my first ride in a very rocky trail on my mountain bike.

Have been to many bumpy trails and never had an issue with this phone mount

I have a gravel bike and hit uneven trails and haven’t had any issue or even uneasy feeling.

I ride on good roads and love well maintained trails

It stays in place and I don't worry about my phone coming loose as I travel bumpy trails

It keeps my phone in place even on bumpy trails

So I put it on for mountain biking, not even a super bumpy trail, the part hold the phone is pretty tight, the thing is, the whole case started to shake and move down, so end with my phone was facing The ground, I tried to tighten it and put it in different spot or position

and it was held snug and secure on the handle bar, even over bumpy trail way .

It is sturdy and secure over any street surface as well as mountain bike trails

What more can you ask for?The only thing that would make it easier to install is if it could jump out of the box onto your bike!Holds phone securely and works as you would expect a phone holder to do

Almost lost my phone as it went flying in the road

but i'm concerned that the phone will not be as secure as if the bands were wrapped around the phone as designed.