Prius Prime Roof Rack & Cargo Box Combo that WORKS!

Discussion in 'Prime Accessories and Modifications' started by HappyJuice8000, Oct 14, 2017.

  1. HappyJuice8000

    HappyJuice8000 Junior Member

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    Just in case someone was wondering how to optimize for both storage and wind reduction with a roof rack and cargo box on your Prime, I found a magic combo with a whole lot of trial and error.

    I went on a long road trip with my 2017 Prius Prime Premium. Due to the limited cargo capacity from the battery taking up much of the cargo area, I had to add roof storage.

    After I attached the Toyota OEM roof rack, I was getting a lot of whistling over 40mph.

    After I added the Yakima Sky Box (16 cu ft), there was whistling plus whooooooshing over 30mph.

    Then, I added the Rhino Rack wind fairing (38"). Miraculously, the wind noise vanished 100%. No wind noise up to 80 mph.
     

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  2. Ferrarilover

    Ferrarilover Active Member

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    Where do you add the wind faring?

    Today I have been looking at the Thule roof bars and boxes. Think I will end up with the Touring M model box. Going to go for the square bars as they will never be on the car with out the roof box so it won’t make a difference.


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  3. HypersonicPrime

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  4. HappyJuice8000

    HappyJuice8000 Junior Member

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    The wind fairing attaches to the front bar with flat-ish adjustable brackets. The cargo box then sits on top of the attachment brackets. It was quite easy to attach, and the combination worked well together.

    Be warned that the roof rack attachment is not easy, due to the curvature of the roof. You must exercise great care to make sure you don't warp or scratch the very delicate attachment points. I think it would be very easy to warp the door frame with universal fit kits. One crank too much on the allen wrench, and you *will* warp the body of the car. Fortunately, the OEM rack comes with a very clever torque limiting wrench to reduce this effect.
     
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  5. HypersonicPrime

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    I looked at the roof rack options and went with Toyota's. The bars are designed for the car, cheaper, and looked better to me.
     
  6. Ferrarilover

    Ferrarilover Active Member

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    The Thule bars have a specific pack for the Prime / plug in to take account of the curved roof. They are also cheaper than the OEM ones if I go for the square ones. As I will never have the bars on without the box then the shape isn’t an issue for me. I would be interested in something that makes the box quieter though.


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  7. Pork_N_Beanz

    Pork_N_Beanz New Member

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    OEM Toyota roof rack I am now just looking for a cargo box
     

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  8. Pork_N_Beanz

    Pork_N_Beanz New Member

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    And here it is
    Yakima Skybox 16
     

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  9. Ferrarilover

    Ferrarilover Active Member

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    Could you be kind enough to provide some pictures and a review of the box... I am in the market


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  10. HypersonicPrime

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    FYI, the mpg reduction (which we expect) was greater than I anticipated for just a fairing. Here are some recent findings with my fairing and OEM rails.
     
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  11. McCalls

    McCalls New Member

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    So, just for clarification... The OEM rack system with the Yakima box, and Rinho fairing is the combo to go with in order to experience no wind and smooth riding?
    Or, is the Best option the full Rinho getup?
     
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  12. Umana

    Umana New Member

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  13. Umana

    Umana New Member

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    Have you driven thru a self washing Carwash with you OEM roof rack? Any issues?
     
  14. HypersonicPrime

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    After issues with brush-type car washes in previous cars, I do not use those types anymore. I don't think I'd go through a touchless (high pressure water) wash with the Yakima fairing, but I think just the OEM racks would be fine in the touchless wash. I mostly use the DIY washes with the wand you use yourself.
     
  15. Bluebells2

    Bluebells2 Junior Member

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    What is the length of your Yakima skybox? It seems that it’s 81 inches is that correct. Does it feel too big?
     
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