The Thule Xadapt 8 is an adapter kit that makes it possible to connect the Thule 598 Criterium & 597 Super G bicycle racks to Thule Xsporter truck racks..
Lid cover to protect the box from scratches and dust during storage.
This cover fits the following Thule Cargo Boxes:
639450 - Thule Motion 3 XL Low Black Cargo Box
639451 - Thule Motion 3 XL Low Titan Cargo Box
635601 - Thule Force XT Sport Cargo Box