I just wanted to add a couple notes. First of all, the listing does not display the fact that the mirror arms can actually be mounted in two different directions. The end where the mirror comes out is also threaded and the set screw can be installed in either direction as seen here:

This greatly increases the possibilities when installing. The arms that the set screws attach into are deeply notched to keep from falling out. They are however very smooth and do not provide a good surface to keep the mirror stalks from shifting. I counteracted this problem with a few strips of friction tape as seen here:


This seems to have helped when tightening down the screws. I also put a turn of tape around the expanding sleeve to add some grip against the inside of the handlebar tube.I have not yet taken the bike out and adjusted the mirrors to their final position. When I do though I believe I will mark them and then reinstall the screws with some threadlocker to keep from vibrating loose. Overall I am happy with these at the moment.


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