Continental Grand Prix 4000The GP4000, which replaced the GP3000 one of the fastest, lightest and most durable road clinchers available, is improved in almost every way.
- 20% less rolling resistance
- lighter weight
- better puncture protection
- higher mileage
- anti-aging compound
- tire wear indicators
Improved Puncture Resistance - The all new Vectran belt provides better puncture protection than the GP3000. Vectran is more flexible and lighter than other puncture resistant materials, offers more cut resistance than Aramid, and is five times stronger than steel. It saves weight and exceeds the flexibility of the nylon layer used in the GP3000.
New Tread Compound - Continental has improved their Silica rubber compound, increasing the handling for safer and faster cornering while reducing rolling resistance. A new anti-cracking formula reduces the affects of UV and increases mileage.
Black Chili compound - Now 700c x 23mm and 20mm sizes are available with the new Black Chili compound. This material incorporates rubber compound particles as small as 10 nano meters in diameter, or roughly ten times smaller than what is typically used. Continental claims that Black Chili delivers the ultimate combination of tire characteristics: the smaller particles yield more points of contact with the road surface (offering enhanced grip), are more tightly bound to each other (reducing wear), and the resultant structure is more flexible (lowering rolling resistance).
Available in 10 different colors and 4 sizes (650x23, 700x20/23/25). Kevlar bead, folding tire. Max pressure: 125psi (700x23) 160 psi (700x20). Weight: 190g (650x23/700x20), 205g (700x23), 215g (700x25).
Available in many different colors and sizes. Folding tire. Buy 3 or more and save 5%. Buy 6 or more and save 10%. | 
All Black 700x23 w/ Black Chili