The mirror on my K9 is mounted on the clutch side handgrip, and it's spare to say the least--but it sure looks cool. Other issues are a full face helmet and sunglasses with foam eye cups, all serving to restrict vision, especially when moving to the right lane.I also wear formed ear plugs. Bottom line: Between the foam on the sunglasses and the full face helmet, I can't see much over either shoulder. And I'm old, so my neck won't willingly turn as far as it used to, either. And I don't hear much, especially with earplugs. It can be dicey to move into the right lane in traffic.... So I ordered a mirror for bikers (made by CIPA...available on Amazon for about $8). I'll post again after a trial period to see how it works out-- Could even double as brass knuckles, you think?