{TAIL ~ The first main groove} is made of a see through groove extending in {HEAD ~ the tire circumferential direction} 
{ TAIL ~ The first main groove } is made of a see through groove extending in { HEAD ~ the tire circumferential direction }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD