Felt IA 2.0 Expert Ultegra Di2 Bike

The Felt IA 2.0 Expert Ultegra Di2 Bike is a serious triathlon machine built on the same IA 2.0 platform and aero geometry that put Solveig Løvseth on the top step of the 2025 IRONMAN World Championship podium. Where the FRD represents Felt's absolute pinnacle, the Expert brings that same race-engineered design — the radical aero silhouette, the integrated cockpit, the purpose-built TT geometry — at a price point that puts a genuine competition-ready triathlon bike within reach for a broader range of athletes.

At the heart of this build is a UD carbon frame and fork shaped around one objective: minimizing drag from start to finish. The IA 2.0's integrated hydration and nutrition storage keeps fueling within the aerodynamic envelope so you never have to break position on course. The geometry is purpose-set for the triathlon position — steep seat tube angles to open up the hip flexors for the run, and a low front end designed to put you in the most aerodynamic position you can sustain over a long bike leg.

The drivetrain is Shimano Ultegra Di2 R8150 across both derailleurs — 12-speed electronic shifting with the precision and reliability that serious racing demands. The Shimano SW-R9160 and SW-R9150 Di2 TT/Tri remote shifters let you shift from both the base bar and the aerobars, so gear changes happen without ever coming out of your race position. A matched pair of Vision Metron SC 60 i23 carbon wheels provides a deep, aero-optimized rolling platform without the crosswind sensitivity of a full rear disc, and Continental Grand Prix TR tires in 700x25 deliver dependable speed across varied road surfaces.

Braking is handled by TRP HD-T910D hydraulic disc calipers with their Di2 adapter integration and TRP TR140-25 140mm Centerlock rotors — a TT-specific setup designed to deliver consistent hydraulic braking power in a configuration that works cleanly with the Di2 electronic system. The Felt IA 2.0 Carbon cockpit — integrated basebar and aerobars — and Felt IA 2.0 Dedicated SP Carbon seatpost complete a build that's cohesive from saddle to stem.

Specs at a Glance

• Frame: UD Carbon
• Fork: UD Carbon
• Drivetrain: Shimano Ultegra Di2 R8150, 12-speed (electronic)
• Crankset: Shimano Ultegra R8100 52/36T
• Cassette: Shimano Ultegra R8101 11-30T, 12-speed
• Bottom Bracket: Shimano SM-BBR60
• Brakes: TRP HD-T910D Hydraulic Disc w/Di2 Adapter
• Rotors: TRP TR140-25 Centerlock, 140mm
• Shifters: Shimano SW-R9160 Di2 + SW-R9150 Di2 TT/Tri Remote
• Wheels: Vision Metron SC 60 i23 (front and rear)
• Tires: Continental Grand Prix TR 700x25
• Cockpit: Felt IA 2.0 Carbon basebar and aerobars
• Saddle: Prologo Zero Tri PAS Tirox 136
• Seatpost: Felt IA 2.0 Dedicated SP Carbon
• Weight: 10.3kg (size M)
• Sizes: 48, 51, 54, 56, 58cm
• Pedals: Not included

Design Benefits

1. IA 2.0 aero platform — the same frame design and geometry as the FRD, built on Felt's proven race-engineered IA 2.0 architecture. The aero silhouette, integrated storage, and TT-optimized position are all here — in UD carbon construction.
2. Shimano Ultegra Di2 R8150 — 12-speed electronic shifting with Shimano's Shadow rear derailleur design for consistent, precise gear changes under load. Two sets of TT/Tri remote shifters (SW-R9160 and SW-R9150) give you control from both the basebar and aerobars.
3. Vision Metron SC 60 i23 wheelset — a matched 60mm carbon wheel front and rear, offering meaningful aerodynamic depth while remaining manageable in varied race-day conditions. The i23 internal width accommodates modern 25mm tire profiles well.
4. TRP HD-T910D TT hydraulic disc brakes — TT-specific hydraulic calipers with Di2 integration deliver consistent stopping power and clean cable routing in a setup designed specifically for the demands of triathlon geometry and electronic shifting.
5. Integrated aero cockpit — the Felt IA 2.0 Carbon basebar and aerobars are designed as part of the bike's overall aero system, with integrated hydration and nutrition storage keeping the silhouette clean and your fueling strategy intact.

Final Take

The Felt IA 2.0 Expert Ultegra Di2 is the right bike for the triathlete who wants a genuine race machine — not an entry-level TT bike, not an adapted road bike — but the actual IA 2.0 race platform with Ultegra Di2 precision and a complete aero build. If you're training seriously and racing to your potential, this is the bike to do it on.