Admittedly, when I ripped open the package and have the Cyclestar LANG found it I was a little disappointed. Because of the mirror with the nickname "Long" appeared to me but come rather too short. The mirror surface itself seemed something tiny. But OK. Mounting absolutely no problem. Property it bolted to the handlebars on EBike my wife by cuff. For this I had the brake lever and this control box of Electrical move slightly to the right (about 5mm). The mirror is really great set. All imaginable angle can be adjusted, rotate, flip, etc. The small mirror surface then has surprised me positively. The mirror is slightly convex and really makes a good picture backwards. He's also really fix. The set position does not change automatically due to vibrations.