The two second main grooves are disposed on two sides of {HEAD ~ the first main groove} in {TAIL ~ the tire width direction} 
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The two second main grooves are disposed on two sides of { HEAD ~ the first main groove } in { TAIL ~ the tire width direction }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL