[mdiiulio]

For those with a cargo box, I've found that placing the forward bar as far forward as possible (within cargo box and rail spacing limits) helped a ton on a US cross-country trip. I have a Yakima Skybox and was getting bad vibrations around 70mph, which is ok-ish on the East Coast with lower speed limits, but by moving the front bar max-forward it ever so slightly lowered the nose of the box and I was able to maintain 85mph before the vibes started again. The extra 15mph really paid off starting around Iowa/Nebraska. Don't ask about fuel economy.

 

[mdiiulio]

I'm glad Volvo allows us to be responsible adults and install the load bars through almost 90% of the length of rail. It allows the customer to tailor the spacing to fit the needs of the loads. Looking only at Yakima crossbar spacing limits, you would need a spacing of precisely 32" to fit all but one of their current products (https://yakimasupport.zendesk.com/hc/en-us/article_attachments/115000268988/Crossbar_table.pdfPDF source). Which manufacturer wants to check the major cargo brands every time they spec a new design? I'm sure the other brands have products that fall outside that range too. I don't have pictures of this, but what if you want to rent something very large like an extension ladder? Is 32" enough? Heck no it isn't. I put a bar at the very front and the very back to balance the load. Having that versatility saved me from having to rent a truck for 2 days.