My Dad has them on his bike and at first they were wierd but once used to them are fine, he likes them a lot. Me I am too much of a cheapskate and went with stick on round spots !!

 

Stick on round spots for me, easy on, and CHEAP, just like me!&nbsp\\; CCRyder

 

I wish I could find small blind spot mirrors. The only ones around here are too big. I'd like to find some about the size of a quarter.

 

I tried them and didn't care much for them. I think it's s great idea, but the convex portion needs to be tilted away from the center to be more effective. It seemed like they were just a different view of what is seen in the regular mirror surface instead of an extended view. I bought 1 inch stick on blind spot mirrors from J&amp\\;P and think that configuration offerers a better overall view.
-Bill-

 

I had them and ended up replacing them with just a bigger mirror. After several weeks, I just didn't see the advantage.