In {HEAD ~ one embodiment} {TAIL ~ the outer filler strip} extends radially outward beyond the radial extent of the single bead filler 
In { HEAD ~ one embodiment } { TAIL ~ the outer filler strip } extends radially outward beyond the radial extent of the single bead filler
OTH HEAD HEAD HEAD HEAD HEAD HEAD TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH