I just mounted a set of Vittoria Corsa Evo CX's, and I love these tires. The ride is like nothing I've experienced before. BUT... The front tire in particular is making a distinct ticking noise, one per revolution, that gets louder as I go faster. Extremely annoying. The sound appears to correspond with a bit of a hop in the tire (it's definitely NOT in the wheel) near the valve stem.
The rear tire exhibits the same hop in about the same location, but doesn't seem to make the same sound, or if it does, it's much less noticeable.
Any ideas about how I might quiet down these otherwise marvelous tires?