I have tried the Aspire bar end mirror and it was crap. On my first ride the mirror fell out and broke on the pavement from ordinary vibration. They sent me another mirror and, I glued it in place. However, the viewability is not that good at all. Difficult to adjust and, you end up spending more time looking down trying to make heads and tails about what is behind you. Then you hit a pot hole and, well we all know how those feel.

Forget the bar end mirror, go with the Take-a-look. Not perfect but, it's much easier mirror to glance at and see what is behind you.