Postboxer wrote:Different bikes and different riders will have different characteristics, maybe just different tyres and tyre pressures will produce vastly different vibrations in the handlebars and mirrors. I've always found cycle mirrors vibrate a lot and maybe as I ride in different positions, the mirror isn't always in the right position for me, currently using a bar end mirror on drop handlebars, but it's quite low and not far enough out, the view is obscured by me and the pannier when it's there. If I remember correctly I used to have one like this,
https://www.sjscycles.co.uk/accessories ... drop-bars/
which may have been better but can't really remember, was a long time ago, maybe I should invest in a new one, it did make one brake hood wider than the other though.
Vibration in bike mirrors can be a problem, as it once was for motorbike mirrors. There are ways to reduce it .....
You can change it's reverberation frequency by sticking on a bit of weight. It doesn't need much. I did this with an early bike mirror that was very lightweight and it stopped vibrating except on very rough roads.
You can insulate the mirror from the vibrations of the rest of the bike. I have a boingy stem with elastomers in it to reduce road vibration to my hands at the bars. It keeps the rough road vibration at bay from the mirror too, which is also less inclined to move on it's ball & socket joint now.
Other bar-end mirror are inherently less prone to vibration. The sprintech mirrors are very steady, with no vibration on even the roughest road; and no real inclination to move either. This is due to the design of their ball and socket joint, which seems to absorb virtually all the vibration in the bars.
One other perspective concerning bike mirrors is that the modern better-functioning variety might well be said to be something of an essential. You wouldn't drive a car without mirrors, since mirrors enable one to know what's behind as well as what's in front without having to constantly look over one's shoulder. You can anticipate and arrange necessary actions well in advance to cater to what's coming up behind you.
If you have no bike mirror, it's unlikely that you can do this sort of anticipatory stuff as to do so you'd have to be looking behind half the time you ride. This is impractical and probably dangerous, since without a mirror you can't look both ways at once. With mirrors you can, as your peripheral vision will notice things in front even as you make repeated rapid glances to the mirror(s).