TourX Roof Rack

Zaxer

Active member
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132
43
MKE
Buick Ownership
2018 Regal TourX
I bet it has to do with the width or available width range as the front one would need to be wider than the rear. If the rear was used in the front, the rail may not have enough “bite” on the uprights to be considered safe.
That is it. The front measures +/- 42.5” between the rails (at the dimples) vs the rear at +/- 41”. Hard to get a quick measure as the roof crowns petty high inside the rails.
 
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