Vittoria Zaffiro Pro V G2.0 Tire 700x28 BlackVittoria Zaffiro Pro V Tire 700 x 28 Clincher Folding Black G2. 0. The training tire benchmark includes a strong nylon casing secure grip and long tread life. Using a mixed tread design optimized for all around use the Zaffiro works well in a range of training conditions. Add the durable folding nylon casing and you get a performance oriented training tire at a great price. Additional puncture resistance belt at the center of the tread Extremely