Yakima Skybox 18 on 2021 CX-9

I bought a 2021 CX-9 GT back in November 2020. I thought the way to go on crossbars was OEM but the tailgate could not open all the way with the skybox 18. I did a little more research and just installed the Yakima Ridgeline towers with the appropriate clips for Mazda. The clips for the flush mount side rails have a nub that needs to go into the holes used by the OEM crossbars. This limits the placement of the towers on the roof rails. Yakima's instructions say to use the rear holes but this would have moved the crossbars even further back than the OEM bars. I chose to put them in the forward holes on the side rails which moved the bars about 2-3 inches forward. This gives me enough clearance to fully open the tailgate. I can't see how using the forward holes creates a safety issue.

Hopefully, my pain is someone else's gain on this one. Wish I had started with these crossbars.


  • IMG-0426.jpg
    338 KB · Views: 253
  • IMG-0429.jpg
    236.7 KB · Views: 241
  • IMG-0427.jpg
    332.2 KB · Views: 254
Mazda CX-9 Signature
It looks really cool! And FYI from my personal experience with Yakima. Check your towers often because after a bit of driving, the bolts would not hold their torque values. But that was before they updated their torque wrenches in 2018.

Latest posts