Felt AR | Advanced | 105 Di2 (White)RACE WORTHY SPEED WITH A MORE ACCESSIBLE BUILD An aero race bike is an exceptional addition to a performance oriented rider's stable. For hard training efforts and your Strava segment hunting, you've got a perfect solo effort rig. For race day, the AR provides the platform that'll deliver glory. Paired with Shimano's 105 Di2 groupset, this latest model version set for speed.