The Force 3 is a rugged, aerodynamic cargo box with Thule's tough AeroSkin surface. The box is easy to install on your crossbars with four "claws" that open and close by turning a knob inside the box. This PowerClick quick-mount system with integrated torque indicator clicks audibly when you've mounted the box properly. Thule's SlideLock system separates locking and opening functions and indicates when the box is securely closed (locks are included and are one-key system compatible). The box can open either direction and will fit on square, round and most flat bars and factory crossbars. Volume Exterior dimensions Weight Max ski length Front Clearance L Sport 300 L 191 x 63 x 42 cm 15.4 kg 175 cm 126.5 cm M 400 L 176 x 81 x 44 cm 16.8 kg N/A 115 cm L 450 L 195 x 85 x 43 cm 19.5 kg 175 cm 128.5 cm XL 500 L 215 x 87 x 43 cm 22.2 kg 195 cm 135 cm XXL 610 L 232 x 90 x 46 cm 25.9 kg 215 cm 143.2 cm
