Abstract: An insert for a rack system includes at least a pair of front posts, a pair of rear posts, a plurality of front elongated crossbars extending between the pair of front posts, and a pair of rear elongated crossbars extending between the pair of rears posts. The insert comprises a pair of opposing side beams, each having a front, inverted stair-shaped abutment and a rear, inverted stair-shaped abutment. The insert further comprises a pair of elongated crossbeams extending between the opposing side beams. The insert can further be arranged such that each of the elongated crossbeams has a substantially rectangular cross section. The insert can further be arranged such that each of the elongated crossbeams is angled to receive a tread of a tire.

Abstract: A tire rack includes a base having a plurality of apertures in a bottom surface, and a plurality of posts extending from a top surface of the base. Each of the plurality of posts has a reduced diameter portion having dimensions corresponding to the apertures in the bottom surface of the base. The tire rack further includes a plurality of side bars. Each side bar extending between two of the plurality of posts, and each side bar having a plurality of apertures. The tire rack also has a plurality of crossbars. Each crossbar extends between two of the plurality of side bars, wherein each crossbar has a first end removably received in an aperture of a first side bar and a second end removably received in an aperture of a second side bar. The plurality of crossbars are configured to receive a plurality of tires in an upright position.

Abstract: A tire rack includes a base having a plurality of apertures in a bottom surface, and a plurality of posts extending from a top surface of the base. Each of the plurality of posts has a reduced diameter portion having dimensions corresponding to the apertures in the bottom surface of the base. The tire rack further includes a plurality of side bars. Each side bar extending between two of the plurality of posts, and each side bar having a plurality of apertures. The tire rack also has a plurality of crossbars. Each crossbar extends between two of the plurality of side bars, wherein each crossbar has a first end removably received in an aperture of a first side bar and a second end removably received in an aperture of a second side bar. The plurality of crossbars are configured to receive a plurality of tires in an upright position.