Originally Posted by onespeedfreak

actually, the real reason Cervelo went back to 7800 was that the team was having front shifting problems because they use Rotor chainrings. the front derailleur has to sit much higher over these chainrings and the wider 7900 fd cage, combined with the higher fd placement, made chain dropping more of an issue. round chainrings would eliminate that. but then again, Rotor pays the Cervelo team money and Shimano doesn't...