redfishpaddler

I use the following and find the optics to be great. Go to Google and look for:

Italian ROAD BIKE un-helmet MIRROR

I use one on both sides. When on my recumbent I used to end-bar mirrors.
Either way, I never turn without looking as well.
Bob

adrien

I have them, and like them a lot.

Could not get used to the one that clips on your helmet. I have a bad astigmatism, and have a lot of trouble changing focus from the distance ahead of me to an opbject that close to my head.

Only issue used to be that rough roads would knock them out of alignment. so i adjusted them to where I wanted them and then put a zip-tie in the pivot area to lock it in.

Vs. no mirror, the big advantage is seeing cars coming from behind at night. the light reflects up and you notice it way sooner

Wogster

The problem with looking over your shoulder, is the same as it is in a car, but the consequences are not as risky, due to a lower speed (most of the time).

Read an interview with a guy who became famous as a race car driver, who then went into the whole advanced driving school thing. He said the two most important things about driving that everyone forgets are setting the mirrors properly, and doing a walk around of your vehicle before driving off. If your mirrors are set properly, then you don't need to shoulder check. The problem with the shoulder check is that while your looking over your shoulder, where are you NOT looking, exactly, straight ahead, so you don't see what your aiming at, until you look back and realise you don't have time to take evasive action to avoid th... CRUNCH

The proper way to set a car mirror, for those interested, is you just barely overlap what is in the rear window mirror (if applicable), if there is no rear window mirror then your probably driving a truck, having driven a courier curbside and a 3 ton cube van, I know they have a lot more mirrors then a car does, the curb side has 2 which get angled differently, one is angled in and the other is angled further out, and the 3 ton also adds a third mirror
the instructor when I cleared to drive the 3 ton, called it an idiot mirror, it allows you to see idiots coming up beside you, hiding from your regular mirrors. What I find interesting is that SUVs and vans often have just a car type mirror, even though the rear window mirror is pretty much useless.

NEVER pass a large truck on the right, stay behind it, if your going faster then it is, then pass on the LEFT and flip your headlight on first, the light will show up better then you will in the mirrors.