Fix the problem or prepare in advance by packing a spare set

with a carbon composite sole for efficiency when you're pedaling and a SlipNot™ rubber outsole for traction when you're not

The Industry’s Strongest

while providing you with the peace of mind that light reinforces Your visibility and security during the day

Hard-Case Lite protection keeps punctures from interrupting your base miles or making you late from work

Continental Grand Prix 4000 S II Folding Tire Size:700 x 25 Fix the problem or prepareThe Grand Prix 4000 S II is the ideal combination of comfort, puncture protection and low rolling resistance. It's the perfect all rounder for all conceivable conditions with excellent puncture protection thanks to Vectran puncture protection and BlackChilli's high mileage rolling efficiency. Transparent Sidewall: The tire sidewall is left without the outer most rubber layer so the casing ply is visible. The bare casing ply gives the tire sidewall a