Thought I would post my findings with the NEW Wunderlich Marathon screen, fitted it today and as weather not great only managed around 28 miles.
It fits fine and looks good on the bike, The wind on shoulders etc have definately minimised, however, I am still getting air and wind noise at head of helmet even in the high position, the Marathon Screen on the GSA was superb, it pushed air over helmet, no noise ? I know its a different bike and smaller screen, but I did expect it to be better than it is.
Will try again on longer ride, but a little dissapointed !! especially for the cost around £160.
May try a Givi screen, at half the cost ?
Anyone use a Givi screen ? any good ?