Dunlop Sport Maxx Race 2 FEATURES AND BENEFITS Summer weather traction Improved controllability High speed durability OVERVIEW The Dunlop Sport Maxx Race 2 (N1) is a high performance, summer tire made for racing cars. This specific tire is marked with N1 as it is the original equipment of Porsche vehicles. This tire is for the rear axle position. This specific tire is from 2018. DOT 2018.