I got the Thule because:And just so that I understand you got the thule since the box can lock to the bars and the bars to the rails? right? The rav4 bars don't really lock so no one can steal them but you could lock the box to those bars.
A. The OEM crossbars (specifically the rear OEM crossbar) is not wide enough for my box. Another member posted on here somewhere that the OEM bar only offers a width of twenty-something inches. My box is 30" wide.
B. The OEM bars don't strap on to the side rails or anything like that and the Thule ones strap all the way around the side rails. The OEM ones stay in place by a pressure screw type design (so I've read). Design-wise, I believe the Thule design offers more stability and can likely carry more weight.
C. The OEM bars don't lock...well, they do, but according to some folks on here, you can use anything to unlock them so that's not too useful. I'm not as worried about someone stealing my stuff but it's nice to have a lock feature that works.
D. The OEM bars are really thin. My cargo box is sorta old and the attachment is a square "U" shaped bracket. The Thule bars are thicker and more accomodating to the U bracket. I don't know if the OEM ones would have been OK, but if they're anything like my dads OEM bars on his car, they're too thin. The box attachment was designed to attach to something thicker.