Mine came with the bike and I am completely satisfied. They shake less than handlebar mirrors and give adequate coverage. My head is on a swivel when I ride anyway, so I could actually kill the mirrors entirely and not miss much.

spiz

 

I like my fairing mounted mirrors Very little vibration during ride - some during stops but not a big problem.

It took me a couple tries to get set the way I wanted them. Field of view is great - I still look before I change lanes - A quick glance over the shoulder prevents accidents - any mirror will have a slight "blind" spot no matter waht unless they are 10' wide and 10" tall .

 

I didn't like them on my EGC. I just removed them and replaced them with traditional handlebar mounted mirrors.