A bead seat rubber 21 provides the interface contact with the rim 70 and is made of {HEAD ~ any suitable bead seat material} standard in {TAIL ~ the industry} 
standard in
A bead seat rubber 21 provides the interface contact with the rim 70 and is made of { HEAD ~ any suitable bead seat material } standard in { TAIL ~ the industry }
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 HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL