of a different pair of sleeve members defining a bore set at the alternative angle application_number US 52931690 A description as shown in the exemplary drawings a wheelchair referred to generally in fig1 by the reference numeral 10 includes the rear wheel camber sleeve assembly 12 of the present invention for rotatably supporting the large or main rear drive wheels of the wheelchair in this regard the general construction of the illustrative wheelchair 10 is representative of lightweight folding wheelchairs formed predominantly from metal tubing frame components more particularly the wheelchair 10 conventionally includes left and right side frames 14 and 16 adapted for respectively supporting a pair of relatively large main rear wheels 18 and a corresponding pair of relatively small front caster wheels 20 each of the side frames includes a pair of generally horizontal longitudinally extending upper and lower frame members 22 and 24 which are rigidly interconnected by a front support post 26 and a spaced pair of rear support posts 28 and 30 in addition the side frames 14 and 16 are interconnected by laterally extending frame components which may be adapted to collapse or fold to a compact geometry and which further cooperate with the side frames in a deployed configuration to support a conventional seat and backrest for the wheelchair the camber sleeve assembly 12 of the present invention is adapted to mount onto each side frame 14 and 16 to rotatably support the rear wheel 18 at a selected camber angle in this regard the invention is adapted for easy and convenient selection of any one of several camber angles by appropriate selection of sleeve assembly components however when the selected components are installed onto the.