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Aren’t you supposed to slide the T-nut over the rubber strip, so it kind of deforms around it and pops back up either side? Sure I saw a YouTube video showing this. BMW racks are made by Thule and have good install videos
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snoops
Danimal
Whistling roof rack question. I've just installed some roof bars, supposedly aerodynamic profile. They have a rubber strip covering the central slot. I removed the strip to fit a Thule 598 bike carrier. With the bike carrier installed there is quite a noticeable whistle when driving over 50ish mph.
Did I do something wrong or is this just normal? Obviously the car's aerodynamics are affected by the bars and rack (and the bike on top) but it's a bit annoying.
I'm wondering if I should have cut down the rubber strip to cover the parts of the slot on either side of the Thule mounting points?