This part I ordered because I due to my handlebar bag no more light on the handlebars attach kann.Der adapter is a good solution, the unit is installed securely and illuminates the road, so you can also see what. Unfortunately, my fender fits now off no longer, because it is attached to the fork. So I had to make compromises: apron or light. I opted for the light, because that's important, and I am also satisfied with the purchase.
Addendum to 18/11/2013: I have of my fender just sawed off the front part .... so it is particularly suitable to the fork adapter using ... just now when the bad weather that is important so that you will not eingesaut from top to bottom ,