Continental Grand Sport Race Road Tire The Grand Sport Race Tire is as much a race tire as it is a training tire. As there might be lighter tires out there, the Grand Sport Race delivers a healthy balance low weight and suppleness for a performance-ready tire that's also hungry for miles. Using Continental's Pure Grip Compound, the Grand Sport Race Tire offers high traction for all-weather grip, because after all, nothing should get in the way of your training. Nothing kills a buzz like a getting an untimely flat, therefore exceptional puncture protection is enabled through a Ny Tech Breaker inner strip. The Grand Sport Race; jack of all trades, yet master of none. Light and supple 3/180 tpi casing Ny Tech breaker for the best puncture protection Pure Grip compound ensures excellent grip Bead: Foldable TPI: 3/180PSI: 23c 110-120/ 25c 95-120/ 28c 80-116Claimed Weight: 23c 230g/ 25c 250g/ 28c e 1/4C 270g | Continental | Grand Sport Race Road Tire | Black | 700X25, Folding Bead