ya know, a picture probably wouldn't help much, cause each time i put the "4" bikes on the rack its is different, but i use about TEN bungee cords to tie them all together and down to the rack and against the upright bar, 2 trips out and back with no problem...............
Rod & Linda Johnson
2006 F-250 SD 4x4 6.0
2012 Columbus 320RS
K-9's Lucy & Lizzie
Enjoying Life 1 Campground at a time