A button arm advances toward {TAIL ~ the wheel} in an axial direction to cause a second sector of the tire beads to pass over one of the wheel flanges and position the tire beads within the second sector within a well that is defined between {HEAD ~ the flanges} of the tire  
A button arm advances toward { TAIL ~ the wheel } in an axial direction to cause a second sector of the tire beads to pass over one of the wheel flanges and position the tire beads within the second sector within a well that is defined between { HEAD ~ the flanges } of the tire
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH