Hey Boyd,
For that Inno Quick Base # IN34MR when it talks about minimum and maximum crossbar spread being 23 5/8"-33-3/16" that is going to refer to the center to center measurement. Center of one cross bar to the other. As long as it is between those 2 measurements it will work just fine. Anything measured for roof rack accessories is going to take the center to center measurement.
What big trip do you have planned? view full answer...