With the Add-a-Bike Separators accessory the user can mount a second bike on the same side of the pickup bed along side an initial bike mounted by a Rec-Rac bike rack, either the Channel Ready type or the Universal Fold Rack. With two sets of the separators and bike racks, a total of 4 bikes can be carried in the bed of a truck. This product is manufactured in Colorado of high strength injected molded plastic material.