[lrjet55]

Will a sway bar help with wind gusts on the highway? I drive mostly highway but I haul kayaks and mountain bikes.

 

[bfoutch]

Will a sway bar help with wind gusts on the highway? I drive mostly highway but I haul kayaks and mountain bikes.

Mine does help. However, I do think you should also search this forum, because this question has been answered and discussed many times already. Try searching for 'sway bar wind' or 'RSB wind'.

You are adding a lot of extra 'sail' with your bikes and kayak and you will experience a very different wind effect on your outback than than I do on mine. I did read that using fork mounts helps by removing the extra wind load of the front wheels.

 

[Saint J VT]

I doubt they will help much, as #2 suggested, you are adding a lot of sail up there for the wind to catch. I would just drive accordingly, the more windy, the slower I would go.

If the wind was a 100 MPH cross-wind, would you drive the speed limit, even though the car had NOTHING on the racks?

I wouldn't.
I just might end up parked underneath a huge overpass bridge until the wind subsides.

 

[BarmanBean]

My experience has been that sways do help with gusts from wind and passing large trucks...you still feel it though.