Continental Grand Prix 4000S Ii Black Clincher 700X23C 2 Pack training They're light

They're light

2 - 24 in (59 - 61 cm)

hiding in body's draft

with your gear protected

fabrication logic and fluid channel dynamics

Continental Grand Prix 4000S Ii Black Clincher 700X23C 2 Pack training They're light2 Pack The Continental Grand Prix 4000s II Clincher tire is, quite simply, one of the best racing tires on the market. Featuring Continental's Black Chili rubber compound, the Grand Prix 4000s II is fast and grips the road like glue. To keep you rolling strong, the Grand Prix 4000s II also features Continental's Vectran Breaker, a light thread that has a tensile strength greater than that of steel, which repels anything that the road might throw at