The pivot arm then releases the tire and {HEAD ~ the button arm} retracts from {TAIL ~ the tire} 
retracts from
The pivot arm then releases the tire and { HEAD ~ the button arm } retracts from { TAIL ~ the tire }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL