Felt AR5 Road Bike 2014 Bike Colour Matt Carbon Frame size 51cm. Felt Road Bike Felt AR5 Road Bike 2014 Introduction Carbon fiber aero road bikes have commanded a bit price tag, until now. The AR5 takes our wind-tunnel proven AR frame shape and our UHC Performance carbon fiber to deliver aero performance at an everyman price. Whether you're cruising to your first century or trying to drop the club ride, this bike is equipped with a Shimano 105 drivetrain for faithful shifting in all conditions.