Dunlop Sportmax Q3+ Rear Tyre 140/70 ZR-17 TubelessDunlop Q3+ Plus Sportmax Tires The groundbreaking Dunlop Q3+ boasts exciting refinements and improvements over the highly celebrated Q3, which has earned a reputation as one of the very best high performance track street tires available and quite possibly THE best in terms of performance per dollar. In the "Plus" iteration of the Q3 the only hypersport tire made in the U. S. A Dunlop is touting an 80% redesign, with only the best features and the