{TAIL ~ A sports wheelchair} 1 wherein {HEAD ~ the distance} between said first and second points on said strut linking member is adjustable 
{ TAIL ~ A sports wheelchair } 1 wherein { HEAD ~ the distance } between said first and second points on said strut linking member is adjustable
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH