TT Spoiler for screen

[Abi]

Anyone got any experience of these:

Spoiler for windscreen BMW R 1200 GS - 01-044-0410-0

http://www.nippynormans.com/prodinfo.asp?number=TAT-044-0410&variation=&aitem=2&mitem=4


I'm using Torbinators and Vibration Eliminators if it makes any difference.

Thanks in advance