As far as the Race Bike proto with the gear box, according to the guy on the stand, is still a prototype, and its a "secret" whats inside, but he garantied there's no Nexus, Rohlf, cassete or Petespeed type thing inside, that its was designed by them from the ground up.
The bike was also fited wth brembo brakes, which he claimed were the best brakes he ever used.
The bike was also fited wth brembo brakes, which he claimed were the best brakes he ever used.