Cont. Grandprix 4000s II – 25 mm
The quality of these tires are unmatched in the 20-28c size range.
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Riders from elite racers to casual enthusiasts are always returning to the Continental GP 4000s II. Yes, you can find a better performing tire but the quality to stand up for 10,000+ miles will not be there. The quality of these tires are unmatched in the 20-28c size range.
Continental’s Black Chili Compound is what makes all the performance and quality possible. With the use of advanced nano-metric carbon sciences Continental has figured out how to increase grip, decrease rolling resistance and/or improve life without one of the other qualities suffering. 10k-20k miles on rubber that grips this hard requires some seriously advanced compounds.
Add an infused layer of advanced liquid crystal polymer doohickeys, basically spider webs, and you get a layer of protection from flats that is 5x’s stronger than steel, far harder than the major competition of the Aramid compound in other brands and reduces the weight from even a standard nylon casing.