Schwalbe Ultremo ZX Tire with V-Guard - Clincher $74.00
Race fast, training tough.
Nothing's worse than a flat … well, getting dropped is not that pleasant either. This brings to light one of the greatest battles tire engineers struggle with -- the balance of puncture resistance and rolling resistance. Schwalbe's Ultremo ZX Clincher Tire with V-Guard does the impossible, and is intended to reduce the potential for a flat without hindering ride quality or speed.
What makes this possible is V-Guard, a manufactured fiber spun from liquid crystal polymers. The resulting high-strength, abrasion resistant composite significantly boosts the Ultremo ZX's strength. While that's a bonus, it also doesn't affect ride quality by adding unwanted weight or stiffness to the tire's sidewall.
Schwalbe uses its RaceStar rubber compound on the Ultremo ZX that features a harder compound rubber in the middle of the tread. Schwalbe accomplished this by reducing the distance between their filler particles, effectively creating a denser, more durable rubber compound. When you ride in a straight line, this means that the internal friction of the rubber is reduced so you'll roll faster.
The rubber compound gets softer towards the shoulders of the tread for inspiring traction through fast corners. The casing, made from 127tpi polyester, offers a road hugging feel. It's supple and flexible to conform to irregularities in the surface of the tarmac.
The Schwalbe Ultremo ZX Clincher Tire is a race caliber tire that's durable enough to ride every day. It's available in Black in 23, 25, and 28mm widths.