I've bought the Volvo OEM load bars that have the aerodynamic profile seen here:
When I've attached my bike racks to them, there can be quite a bit of noise over 40 mph. I have a feeling the same will be the case when I get ski racks. That being said, Volvo doesn't make a fairing (wind deflector) for the front bar.
I think someone posted on here that Thule builds Volvo's load accessories and the aero bars we have are pretty similar to Thule's. Can anyone tell me if they've used a Thule fairing with these bars (and what size?)