The Thule 4502 Crossroad Foot Pack is the best solution to mount a third load carrying cross bar to factory raised side rails.  Got a bunch of extra spare wheels to take to your next event?  A third cross bar makes an excellent mounting location for Thule front wheel carriers.  Raised side rails are the bars that run front to back on the outer edges of the roof.  Many SUVs and wagons come with the side rails pre installed from the auto manufacture, check the Thule Fit Guide to verify fit for a vehicle.  The Thule 450 Crossroad Feet attach to the side rail using a very strong, high tensile (800MPa) stainless steel band.  The rubber covered band is flexible to conform and grip a wide range of side rail shapes and sizes.  The installation of the 450 foot is very simple, insert the Thule load bar into the foot, set the foot onto the side rail, wrap the band under the rail and attach into the front of the foot then tighten the band with the hex wrench handle.   No other side rail mounted cross bar system is a simple to install or attaches as securely to inspire confidence when transporting gear.

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