Originally Posted by mike9903

"They (Pro Tour teams) are all on tubulars. We know it because either directly (under Vittoria) or indirectly (private label) we supply a lot of them. Since almost all of them (Pro Tour teams) ride on tubulars, they use latex inner tubes. Some tire manufacturers claims that the team use clinchers, but this is a pure marketing move. In fact they put the wheels with the clinchers on the car - but on the bikes used by the riders they have tubulars."

really intersting, how true is this?