Continental Grand Prix 5000 Timetrial TR - 700 x 28 - Tubeless - TireThe Grand Prix 5000 TT TR is the specialist tire for races against the clock, making it the fastest GP 5000 tubeless tire for the pursuit of speed, be it in a criterium, time trial or triathlon. Tubeless ready (TR) carcass construction is robust and impervious against damage and penetration from foreign objects Designed and built to go fast Vectran Breaker is spun from liquid crystal polymer to create a multiple thread thermoplastic yarn. This