Originally Posted by
Wozza2014
We’ve been told that the Original mirror can only be fixed on the right hand side of the helmet or glasses, whereas the Compact mirror doesn’t go on the helmet at all, just on glasses, but you can swap sides with this one.
This seems a bit of odd information about the Original considering the main market for this is USA.
I have the original and I'm using it on the left (as pictured a couple weeks back here above). I could have used it on the right; it works on either side, but I'm in the USA so the left side it is.
I measured the arm on my original and the length (excluding the clip and excluding the mirror) is about 3 and 1/2 inches. Just eyeballing it. it looks like the arm on the compact is an inch and a half shorter. The mirror surface on the compact is smaller, but it's closer to your eye, so not sure if the image is about the same size? I really have to find one to try.