If you live in an area where the weatherman is never on the ball, you'll need the Vittoria Zaffiro Pro III Tire, which is designed to tackle anything from potholed roads to slick corners. The Zaffiro Pro III is engineered with Vittoria's Aramid Endura compound. This rubber is designed to roll fast and hold its speed. To keep punctures to a minimum, a nylon Puncture Resistant Belt PRB, the same as occurs on the more expensive Open Corsa, is added to the construction. The tread features new, deeper grooves in the middle for secure cornering.