Hi all, just a quick share FYI.
I had a full roof, front runner slim line II fitted. It’s a high standing rack which I wanted to clear the head board of the Norweld tray.
Whilst I didn’t like the cross bar arrangement that much, I figured it would be well tested and it came with a small under bar wind deflector.
Long story short- immediately I noticed harsh heavy vibrations starting in roof and flowing through entire vehicle. Mounting a go-pro of the roof confirmed the issue with a lot of deflection on all cross bars.
A bit of back and forth with front runner AU (requiring the above video evidence) and they have supplied FOC a truss support that runs lengthways effectively bracing each cross bar. Photo shows test fit above bars, but it needs to be moved below longterm else it affects rack capacity/configuration. A pain to fit once rack is on car.
Now, the brace stops 95% of the issues, its only masking the poor wind flow issues and some wind noise and no doubt efficiency losses are present still.
There is a wind deflector fairing made by front runner which I would love to fit, but I have been informed none of the models fit the Gren. I am going to take some measurements myself to consider options….
So, in short. The high front runner rack with cross bars configuration is prone to wind flow issues, and at a minimum needs the additional brace which is not supplied or advertised (was supplied FOC after the follow up). However, I think it should have a deflector fairing made for optimal use.
Hope this helps others!
Levi
I had a full roof, front runner slim line II fitted. It’s a high standing rack which I wanted to clear the head board of the Norweld tray.
Whilst I didn’t like the cross bar arrangement that much, I figured it would be well tested and it came with a small under bar wind deflector.
Long story short- immediately I noticed harsh heavy vibrations starting in roof and flowing through entire vehicle. Mounting a go-pro of the roof confirmed the issue with a lot of deflection on all cross bars.
A bit of back and forth with front runner AU (requiring the above video evidence) and they have supplied FOC a truss support that runs lengthways effectively bracing each cross bar. Photo shows test fit above bars, but it needs to be moved below longterm else it affects rack capacity/configuration. A pain to fit once rack is on car.
Now, the brace stops 95% of the issues, its only masking the poor wind flow issues and some wind noise and no doubt efficiency losses are present still.
There is a wind deflector fairing made by front runner which I would love to fit, but I have been informed none of the models fit the Gren. I am going to take some measurements myself to consider options….
So, in short. The high front runner rack with cross bars configuration is prone to wind flow issues, and at a minimum needs the additional brace which is not supplied or advertised (was supplied FOC after the follow up). However, I think it should have a deflector fairing made for optimal use.
Hope this helps others!
Levi
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