Cannondale's Synapse carbon-fiber frame pulls out all the stops to provide incredibly light weight and amazing comfort. Its oversize, shaped carbon-fiber tubes (left) are wrapped and molded to sleek joints for exceptionally efficient pedal power. The Synapse's hourglass seatstays (center) smooth the road and enhance power transfer with exceptional lateral stiffness. And, the flat carbon chainstays (right) flex to provide vertical travel for unmatched road-bike comfort.