Very timely PSA for me. I run the Vittoria Diamante Pro Radiale III on my dirty pavement bike and had the center of the tread come completely apart this past Monday. Fortunately I wasn't bombing down a hill when it happened.

Anyway, I grabbed a pair of Roubaix Pros on this sale for $16.97 each. I don't know that they'll like dirty pavement any more than the Vittorias but figured I'd give it a go at this price.