How are the crossbars mounted?

[revanthmatha]

I'd like to option the crossbars with led lights or just crossbars alone. The problem is that on the website it shows they block the safari windows. I was wondering if they have fixed mounting points or can be moved back so as not to impede the safari windows.

 

[Spjnr]

They are gutter mounted, so can be moved about the entire length of the roof almost