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Yes you should have cut down the strip a temporary alternative is to tape over it. I had to do this on a long trip when the whistle drove everyone mad.
See Ju87 Stuka Jericho trumpets
Dibble-
Thought that might be it, thanks, will cover the slots. I wanted to leave the rubber strips intact to reinstall when I remove the bike rack, but I'll come up with something. Will probably just have to put up with it for the drive back home from Wales!
And yes "audible feedback as to speed" is definitely a feature I now have, arguably more effective than average speed check cameras.
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?