44 and 46 again the additional elements can either provide a wider wheel 10 or a wheel assembly 10 with narrower elements with reference to fig6 a further embodiment of the wheel assembly 10 is illustrated having the support wheels 48 formed integrally to the spacer means 50 the clearing disc 52 is again an annular ring that is received within the space formed between the support wheels 48 in this embodiment the spacer means 50 and rim 54 would preferably be formed of plastic and the tires 56 would be formed of rubber the clearing disc 52 in this embodiment would also be formed of plastic and the tire 56 mounted to the clearing disc would preferably be formed of rubber the assembly 10 of fig6 can be assembled by opening the clearing disc 52 that is separating the free ends of the annular ring that defines the clearing disc and slipping it over the spacer 50 the ends of the disc 52 can then be connected by for example gluing bolting fusing or welding the rubber tire 56 can then be mounted over the disc 52 to complete the assembly as should be appreciated those of ordinary skill in the art will recognize other methods of assembly which are intended to be included within the.