the footrest in its retracted position the footrest may be simply deployed by pulling it inwardly and downwardly to a position perpendicular to the inner surface of the support block 64 the footrests 60 automatically retracts upon folding the wheelchair provided that the two leg portions 65 are similarly positioned if the two leg portions are positioned so that the center tee flanges 63 of the two foot supports 22 are an abutment shown in fig9 collapsing the wheelchair will cause the two footrests 60 to be pushed outwardly when the footrests pass the balance point the weighted side end flange 62 will drop downwardly and slide along the inwardly and outwardly facing beveled surfaces 80 and 81 referring to fig7 the side panels 12 each include means for receiving the caster assemblies 28 the caster assemblies 28 are received within an integrally formed caster support block 85 formed in the lower front portion of the side panels 12 the caster assemblies 28 include a wheel 86 which is retained in a yoke 87 on an axle as is known in the art the yoke 87 is connected on its upper end to a swivel pin 88 the swivel pin 88 is mounted in a bushing preferably formed of nylon or another low friction material which permits easy turning of the swivel pin 88 the bushing 89 is retained within the caster support block 85.