![Felt AR Shimano Ultegra Di2 Disc Road Bike 2021, Size 54cm Felt AR Shimano Ultegra Di2 Disc Road Bike 2021, Size 54cm](https://shimanoroadbike.com/wp-content/uploads/Felt_AR_Shimano_Ultegra_Di2_Disc_Road_Bike_2021_Size_54cm_01_ipu.jpg)
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The AR is Felt’s fastest race bike, it’s uncompromising in pursuit of efficiency and speed. This latest re-designed version features refined tube shapes and an aero cockpit to create a slippery, aerodynamic profile. Medium (5’6-5’11) View our in-depth size guide here. Reynolds AR 58 Carbon. Pirelli P Zero Velo 25c. Felt Devox Aerobar 40cm.