3.0

Pros: Reasonably cheap compared to some other offering. Mirrors are a good size and give you good field of view. The bar expanding fitting sits really secure and snug within the bar end of the bike. Cons: Tightening the mirrors is quite difficult and they're not secure, these will move about if you hit freeway speeds. Because of this you're constantly adjusting them on the move and at every stop light because they'll just flop about in the wind.