Elite road riders no longer equate comfort with soft, slow bikes. Vertical compliance can reduce fatigue and, in turn, boost power output. Wheel manufacturers’ wind-tunnel testing has also shown that wider tires can deliver aero benefits. For these reasons, tire clearance for the new R Series has been widened to 28mm. Combine this with a Cervélo-engineered aero seatpost, and vertical compliance is further increased while improving aero. At the same time, the latest disc-brake technology, and a new pro fit and fine-tuned handling geometry, will have you charging down chicanes and attacking cobbles with complete confidence.