Continental Grand Prix 4000 (700c)
The Grand Prix 4000 in Black/Blackwall (available in 700 x 20, 23 & 25c; cutaway view shown).
Details
Conti's Grand Prix 4000 brings a host of innovations never before seen in the world of bike tires. The tread pattern has been moved to the shoulders to increase traction in the corners. Tread wear indicators show the wear rate of the tire, eliminating guessing. The ultimate highlight however, is the use of Vectran. It's a polymer membrane that offers puncture protection and reduces rolling resistance, all at a race-ready weight.
Continental's ASC (Activated Silica Compound) technology results in outstanding cornering, reduced rolling resistance and an extremely smooth and quiet ride (available in colored styles only).
Vectran is a liquid-crystal polymer woven into the Grand Prix 4000 as armor against cuts, abrasions and impacts. It's also incredibly flexible to conform to the road's contours enhancing traction and feel. Finally, Vectran resists fatigue caused by repeated flexing, which lengthens the tire's life.
The Grand Prix 4000 features these wear indicators. When they disappear, it's new-tire time.