n’t go on rocky roads

Super easy to install; my phone is completely secure even on rough roads.

This style has so far been the best when it comes to securing it so it doesn’t move when on a bumpy road

Put this on my road bike - easy to install, holds my Iphone solidly in place

Even on bumpy roads.

Once, while I was on a ride with the phone strapped in and hit a patch of rocky road, the shakiness was enough to snap the holder

I have been riding on a lot of very bumpy roads and hit a couple pot holes (ugh!), and the phone hasn't budged in the slightest

It works well on even the roughest back roads, and is very secure.

It was easy to install and holds the phone well with very little vibration considering the rough roads that I ride on.

I have both a water bottle holder and this up on my handle bars; I always end up riding my bike on horrible road and sidewalk conditions and no jiggle or give from the phone holder while my water bottle holder is a jiggling fool

The grip held on even over bumpy roads

Somebody doing rocky roads probably should use two.

No problems riding on rough roads

Holds onto my phone on tough gravel patches and smooth road.

Rode on bumpy roads, through grassy hills and maintained roads: this mount does not shift or otherwise move or lose gripping on the phone

Clamps don't loosen on bumpy roads (riding roads not trails) and plenty of adjustment for any position.

You may need to tinker with it to get the adjustment right for the mounting bracket and the hinge, especially after a few miles on a bumpy road

Holds phone securely even on very bumpy roads, doesn't loosen with time

Sturdy and well designed, it holds my iPhone in place even on rough roads.

It installs fine but sticks up off my bicycle handlebars too much for my taste, and it wobbles unnervingly on rough roads at high speeds.

A few of the club road miles were full speed over rough, rough road an potholes.

Been down some rough roads and it performed perfectly.

Rode a rough road that had been recently rock chipped so constant vibration.

Works great for mountain biking on rough off-road trails

Rode 3 miles rough gravel road.

I used it this Summer while crossing the country my on bike from Virginia to Oregon, sometimes on rough and unpaved roads.

Holds phone securely with a single strap but two would be good just to be safe on bumpy roads or trails.

The only little problem is that the screen position moves a bit when I hit bumpy road

I have mounted it and written with it once on some fairly bumpy roads, and it held rock solid.

Holds phone perfectly even biking over rough roads in DC

I had a different mount before and that would take over a minute to get in - not this one - this is so quick and easy and stays secure on many bike trips over bumpy roads.

A stable platform even on bumpy roads.

For rougher roads would suggest using two of the elastic bands to decrease the vibration on your phone

This mount works as it is described

works as it should fits perfectly would recommend.

Works as

This broke as we were putting it on our bike

Except the ball in the ball-joint which allows the case mechanism to sit, sometimes splits apart as if not glued/assembled properly.

As you would expect, I was a little worried my phone would fall out as I enjoy cross country and some single track mountain biking, but there was no need for concern.

I wondered if the iphone would shift at all during riding, but no worries as it maintained its position throughout my first ride