Starting with the 2021 model year, the roof-rack side rails will become optional equipment. ... Meanwhile, other 2021 Explorer models – including the XLT and Limited – will continue offering roof rack side rails as standard equipment.Sep 3, 2020
What are cross bars good for?
Crossbars. Usually two bars that run across the width of the vehicle roof, which you then mount your activity-specific racks to; whether it's ski racks, bike racks, cargo boxes, kayak racks, etc. Crossbars support the weight of all the gear you're adding to the roof and transfer the weight to the towers/feet.