A caster mount assembly for a front caster of a wheelchair. The assembly includes a first rotatable body having a first plurality of non-uniformly spaced apart apertures and a second rotatable body having a second plurality of non-uniformly spaced apart apertures. The first and second rotatable bodies may be rotated relative to one another along a common axis of rotation to align a selected one of the first apertures with a selected one of the second apertures. The first rotatable body is non-rotatably coupled to the second rotatable body by a first coupler after the selected first aperture and second aperture have been aligned. A bearing fork assembly is non-rotatably coupled to the second rotatable body for rotation therewith. The second rotatable body may be rotated to orient an upright pivot pin of the bearing fork assembly substantially perpendicular to a support surface.