Vittoria Zaffiro EVO Home Trainer Tire - 700 x 35 Clincher Folding Red 1CVittoria Zaffiro EVO Home Trainer Tire 700 x 35 Clincher Folding Red 1C. The Zaffiro EVO Home Trainer tires construction emphasizes longevity over on road performance which is wasted on a trainer or rollers making it one of the most effective investments possible when calculated in terms of pennies per virtual mile. The alternating slick profile and 1C compound mimic the feel of the Zaffiros higher end siblings at a more approachable price point.