315/30ZR21 Goodyear Eagle F1 Supersport 105(Y)From morning commutes to long weekends, the 315 30ZR21 Goodyear Eagle F1 Supersport 105(Y) is built to make every mile count. Goodyear's EAGLE F1 SUPERSPORT showcases thoughtful construction that supports steady handling and reassuring traction. Blackwall sidewall construction helps the tire resist routine wear while keeping the aesthetic understated and refined. Channels and sipes are arranged to promote consistent traction while reducing pattern