The Pilot Sport CUP 2 325/30 ZR21 108Y is a road-approved track tyre, ranked among the best in terms of dependability. Track Longevity 2.0® technology ensures improved durability and endurance. This tyre features two different rubber compounds. On the inside, you have an elastomer that provides exceptional grip, and, on the outside, there's a more rigid elastomer that adheres to wet ground.