Originally Posted by
caloso
Here's a question for the mirror users: I imagine that the angle has to be set correctly on 2 axes (x: side to side; and y: up and down). X seems straightforward enough since you're generally looking straight ahead and then you use a slight side to side to sweep behind. But what about Y? Do you only keep your head in one position? What about if you lower into the drops? If you tip your head forward, doesn't that mean the reflection is of the sky behind?
That's a good question.
My mirror is tuned for me being on the hoods. Even so, to look back, I move my head a little bit up and left. In my normal seating the reflection of the line from my left eye to the mirror, goes through my shoulder. That's unavoidable (unless I got a hybrid or dutch bike with purely upright seating), so I have to tilt up so I can see around my shoulder. If I get down into the drops (rare), then yes I need more "up" to see around my shoulder, but it's within my range of motion. If I am expecting to be in the drops for a while (extremely rare), it only takes one or two taps to noodge the mirror so it is better tuned for that position. Less effort than adjusting the car's rear-view mirror after my wife has driven it.