AR Advanced Ultegra Di2

The AR lineup is split into two frame tiers: the Advanced carbon models and the premium FRD Ultimate series. The Advanced builds offer a more accessible entry point, starting with mechanical Shimano 105 and moving up to Ultegra Di2. These models share the same aerodynamic shaping and split seatpost design but use a slightly heavier carbon layup.

Stepping up to the FRD Ultimate tier introduces Felt’s lighter TeXtreme carbon construction, shedding frame weight to help offset the bike's overall mass. These top-tier builds are equipped with flagship electronic groupsets, including Dura-Ace Di2 and SRAM Red eTap AXS, alongside premium deep-section wheels from Shimano or Zipp. Notably, the Red eTap AXS build is the only model in the lineup explicitly specced with an integrated power meter.

Across the range, reviewers noted that the mid-tier Ultegra Di2 build hits a sweet spot for value, pairing reliable electronic shifting with 58mm-deep Reynolds carbon wheels. However, riders looking to maximize the bike's comfort and rolling resistance should note that while the included wheels are generally tubeless-ready, the stock tires on many builds require tubes out of the box.

Reviewers consistently praise the Felt AR for its exceptional straight-line speed and power transfer, noting that the stiff chassis translates rider input into immediate forward momentum. On flat and rolling roads, the bike excels at maintaining high paces, with testers finding that it "holds speed for fun" (Cycling News) once spun up. The robust bottom bracket and front end make it "devilishly quick – both off the mark and when sprinting" (Cyclist Magazine), appealing heavily to powerful riders.

Despite the deep tube profiles, the ride quality is surprisingly refined. The split seatpost design effectively mitigates road buzz, helping the bike feel "smooth and planted" (Roadbikeaction) over rougher pavement. Testers appreciated that this compliance makes the frame viable for long training days, rather than just short, aggressive efforts.

The primary tradeoff noted across reviews is the bike's weight. Testers frequently mentioned that the extra mass becomes apparent on steep or sustained climbs, making it less suited for mountainous terrain. Additionally, while the handling is stable at high speeds, one reviewer found the steering slightly vague during slower, low-speed maneuvers. Overall, the consensus points to a highly capable, comfortable aero machine that trades climbing agility for outright speed on the flats.