Upon locating a Siggy with roof rails in a nearby scrapyard, i decided to have them away. I got in there with the tools, removed the headlining, loosened the curtain airbag housings, undid the 8 bolts and lifted them off. Now, my question is, why will these not be 'load bearing' when they're attached to my Siggy. I've read threads on here stating that that is the case. I looked at how they fitted on the car i took them off and it appeared that they simply bolted through a 6mm hole in the trough that runs the length of the car?