They seem like they could get loose pretty easy yes, plus they are way too tall

 

I ride plenty, just throwing different options I had laying around on the bike bored because it's winter time.
just some friendly banter, no need to insult anyones riding frequency

 

I like my mirrors


For your bike I'd go with B

 

I like the A style convex, good for seeing behind you.
Years ago i made the mistake of washing the bike immediately before covering it up and storing it. There was water behind the mirrors which froze and cracked the glass over the winter. I then discovered Harley had discontinued these mirrors. Drag Specialties made an exact replica, so that’s what’s on there now.