Thule Xadapt 10 Aero Bar Adapter
$39.95
Will only fit the Thule 669ES Mountaineer ES, Thule 667ES Excursion ES & Thule 668ES Frontier ES Includes mounting hardware to attach 1 cargo box to Thule Aluminum Bars Attaches to Thule AeroBlade Load Bars, Thule 500XT Xsporter, and Whispbar Roof Racks Replaces original Thule Square Load Bar mounting hardware...