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Thread: '18 GT - Roof Cross Bars

  1. #1
    Registered Member

    CX-9

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    Dec 2017
    Location
    Boston
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    116

    '18 GT - Roof Cross Bars

    Hi - can someone please confirm that the OEM cross bars will accomodate Thule boxes?

    I have roof rails already on there, so I think I need to buy these and should be good to go:

    https://www.realmazdaparts.com/oem-p...w0LWdhcw%3D%3D

    Any compatibility issues with Thule/Yakima boxes? I need something long enough to get a pair of skis 180cm long in it.

    Thanks!

  2. #2
    Registered Member

    2010 Mazda 5

    Join Date
    Mar 2011
    Location
    Arkansas
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    87
    I had my big Thule box on for vacation last week. It attached to the Mazda bars fine. With it as far forward as I could put it I had two issues:
    1. It would touch the antenna unless it was perfectly centred with the molded center groove on the bottom of the box.
    2. I had to adjust the tailgate to not open as much so it would not hit the back of the box.

    With the tail gate lower I hit my head more often than normal.
    2018 CX-9 Grand Touring
    2010 Mazda5 Sport Manual
    2005 Ford Freestyle Limited AWD
    2000 Ford Excursion Limited 4WD 7.3 PSD
    1991 Miata

  3. #3
    Registered Member

    CX-9

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    Dec 2017
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    Boston
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    116
    Quote Originally Posted by pkthomas View Post
    I had my big Thule box on for vacation last week. It attached to the Mazda bars fine. With it as far forward as I could put it I had two issues:
    1. It would touch the antenna unless it was perfectly centred with the molded center groove on the bottom of the box.
    2. I had to adjust the tailgate to not open as much so it would not hit the back of the box.

    With the tail gate lower I hit my head more often than normal.
    Thank you.

    Do you know which Thule box you have?

    I was hoping there wouldn't be tailgate interference - I hit my head on the damn thing all. the. time.

  4. #4
    Registered Member

    CX9

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    Jul 2018
    Location
    California
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    7
    I have the Thule Force XL for my 2018 CX-9 using the OEM roof rails and cross bars. No issues with clearance of the antenna or rear hatch.

  5. #5
    Registered Member

    Mazda CX-9 Grand Touring 2016

    Join Date
    Sep 2016
    Location
    Washington, the state
    Posts
    319
    My large Thule box fits OK.

    The attachment screws for the cross bars are more that a little aggravating. The roof rails tip in slightly, or the roof rises there, or both, and it's a trick to get a tool on the screws without scratching the paint. I cut a piece of thin cardboard to slip under the tool while I was putting the screws in. The screws have a T30 Torx head. A 4 mm ball-end Allen driver will run them in snug, but the T30 driver is needed to tighten them. I just bought a Wiha T30 ball end screwdriver #36236; we'll see if that makes it easier to get the screws in & out. I only use the cross bars for my ski box, and I take the bars off the rest of the year.

  6. #6
    Registered Member

    2010 Mazda 5

    Join Date
    Mar 2011
    Location
    Arkansas
    Posts
    87
    It is an older Thule Evolution. I can get two full size soft side suit cases in it with a little room left at the front and back.
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  7. #7
    Registered Member

    2018 CX-9 GT AWD

    Join Date
    Jul 2014
    Location
    NY
    Posts
    10
    I was in the same boat, just bought the OEM cross bars and I have the Thule Force L which is the slightly wider and shorter (compared to XL) box. It fits perfectly and with the box itself being adjustable in terms of sliding front and back you can get it sitting as far back as possible without interference with the tailgate opening/closing.

  8. #8
    Registered Member

    CX-9

    Join Date
    Dec 2017
    Location
    Boston
    Posts
    116
    Thanks everyone for the input. Sounds like I can get away with those bars and save a few hundred over the Thule ones.

    If it comes off once a year I would be surprised.

    Thank you!

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