Challenge Criterium RS Team Edition Tubular Tire Black, 700x28

What Our Gearhead(R) Experts Are Saying:"I have been racing the Criterium RS Team Edition Tubular Tire on fast crits and punchy road races, and the SMARTprime compound paired with the 350TPI sealed corespun cotton casing delivers a speed and road feel combination that is genuinely in a class of its own. The seamless latex tube and cotton casing work together to produce a suppleness through corners that makes you want to carry more speed than you think is possible."When the race is fast, and every position matters, the tire under you either costs time or makes time, and the Challenge Criterium RS Team Edition Tubular Tire was built unambiguously to do the latter. The go-to tire for Challenge's professional athletes on special efforts, the Criterium RS TE combines a 350TPI sealed corespun cotton casing with SMARTprime compound and a seamless latex inner tube to create a complete performance system tuned for the highest level of road racing. Road. cc recommends it. Bikerumor named it an Editor's Choice. The racers who depend on equipment for their livelihood trust it. SMARTprime compound delivers lower rolling resistance than Challenge's standard Smart formulation without sacrificing traction or durability, forming the foundation of Challenge's fastest road tire lineup. The 350TPI sealed corespun cotton casing is naturally softer and more supple than any polyester alternative, and Challenge seals the cotton sidewalls specifically to resist water absorption while preserving the casing's extraordinary compliance. A seamless latex inner tube amplifies that compliance further, improving cornering confidence and allowing the tire to be run at pressures that maximize grip and ride quality on any road surface. PPS puncture protection adds a tightly-woven fabric barrier between the tread and casing so that the only thing determining your race result is how hard you ride.