A wheelchair has a plurality of {TAIL ~ central wheels} which can be either power or manually driven, at least one rear caster wheel, and at least one resiliently biased ground engaging front wheel having {HEAD ~ a multiple suspension assembly} 
A wheelchair has a plurality of { TAIL ~ central wheels } which can be either power or manually driven , at least one rear caster wheel , and at least one resiliently biased ground engaging front wheel having { HEAD ~ a multiple suspension assembly }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD