Okay folks need you to weigh in. I have some friends who are serious cyclist and even older than me. They are busting my chops to get a mirror (either on the bike or extended one on the glasses). They swear by it, I swear I'd never get a mirror. Now a little background, did a lot of racing in my 20's & 30's and still have not fully flushed out the old mindset that seems to go with that crowd, actually only thing left from those days is an aversion to a mirror. However, having said all of this it does get old having to keep turning around to sort traffic out before making a left hand turn. So if by chance I broke down and got a mirror any suggestions; I'm not saying I will but... plus on today's ride got a dust off from a dump truck who buzzed me at 40-45 mph and was no more than a foot away, no traffic on the other side as there was another dump truck right behind and he eased out and passed with plenty of room to spare. Now one question that comes to mind is it better to see what is coming or just react to it when it happens?