I use the quadlock mirror mount with dampening attachment. Really like it. Fits perfectly on the accessory bar that you're referring to. You'll need to get a quadlock case for your phone though.I want to mount my phone to the little bar at the windscreen, what is it called? I can't find any sort of phone mount for that little .51" bar.
Yes, it's basically an iPhone issue. Apple uses Optical Image Stabilization (OIS), while most others use software based anti-shake. It's the tiny actuators which reposition the lens in an iPhone that can't handle the vibration. Intense vibrations are likely not an optimal environment for any electronic device in the long term, but iPhone are particularly susceptible, often in the short term.It's a great idea, but exercise a little caution. I can't speak for other brands, but my brand, Apple, has issued the following re. mounting iPhones to motorcycles.
Exposure to vibrations, like those generated by high-powered motorcycle engines, might impact iPhone camerasExposing your iPhone to high amplitude vibrations within certain frequency ranges, specifically those generated by high-power motorcycle engines, can degrade the performance of the camera system.support.apple.com
First time trying to post a link, so if the above doesn't work, just google "mount iphone to motorcycle" and look for an Apple support page re. this. If you have another brand, of course YMMV.
I thought there was a place in this forum where instructions for mundane actions like adding a link to one's post are found, but I can't find it this fine morning.
Trusting you'll find what works for your phone without damaging it. And I just learned that I should trust Preview, since there I see that the link works just fine. Not going to edit above - others can always learn from my foolishness.