Distance from Siderail Mount to Beginning of Crossbar for the Thule Aeroblade TH7502B  

I have a 2013 Toyota Sienna. Could you please tell me how far the mount for the aeroblade edge extends horizontally from the raised roof rail before the actual cross bar starts? I have a Thule roof box and it is just a little too wide to sit on the factory cross bars without hitting the mount. I want to see if I gain any room with the Thule bars.

asked by: Chris