such as with front clamps 70 and or rear clamps 50 which may be configured to accommodate crossbars of various cross sectional shapes load bars 18 20 may be attached to roller 40 via t lugs 42 as shown in fig1 load bars 18 20 are adjustable from side to side allowing the user to configure the bars to accommodate locations of the crossbar towers as well as any other preexisting roof rack components as shown in fig1 loading device 10 may have a width approximately equal to or slightly greater than the width of the vehicle this allows the device to be used for loading of two or more boats onto a single vehicle without additional adjustments of the roller as apparent in fig1 and 2 a boat or other object may be loaded into saddles using device 10 without the boat touching the vehicle partial views of roller assembly 40 are depicted in fig3 and 4 roller assembly 40 includes crossbar 41 attached to distal ends of load bars 18 20 via t lugs 42 roller extrusion 43 including roller pad 44 holds a roller bar not shown the roller bar may be made of any suitable material including elastomers the roller extrusion 43 may be coupled to.