This item arrived in good time and I fitted it on the car and then fitted my ski roof box onto the newly fitted bars. When I drove the car there was a horrible whistle coming from the roof.
My first thought was that the roof box was causing it but after spending the best part of a day putting gaffer tape on various parts of the roof box I took it off.
The whistle was coming from the roof bars.
Actually from the ribbed parts on the upper surface of the bars.
I neatly put a strip of gaffer tape along the top of each bar and the noise stopped completely.
Seems to be a design fault to me.
A shame because the bars are pretty good apart fom this.