I have a Terry Fast Woman, love riding the bike it fits wells and lives up to the name... the bike is fast. I have ultegra components. When I ride over a rough section of paved road, I have a rattle in the rear wheel. It happens when I am spinning doesn't happen when I am pedaling and it doesn't happen if the road is smooth. My DBF tried to find it while we were riding. I don't think I can duplicate the sound in a shop. Any clues?:confused:

