Felt IA 2.0 Pro Ultegra Di2 Bike

The Felt IA 2.0 Pro Ultegra Di2 Bike is built around a single, uncompromising goal: going as fast as possible through the bike leg and arriving at the run in the best shape possible. Felt's IA platform earned its reputation at the highest level — the IA 2.0 is the bike Solveig Løvseth rode to victory at the 2025 IRONMAN World Championship in Kona, posting the fastest bike split of the race. The Pro spec brings that same FRD 12K Carbon Light frameset to riders who want a purpose-built triathlon machine with a component package that makes no compromises on the details that matter.

FRD stands for Felt Racing Division, and the 12K carbon designation represents Felt's highest-specification carbon construction — the same material used in their flagship FRD builds. The Pro uses it on both the frame and fork. The geometry reinforces the intent: seat tube angles range from 77.5° to 79.5° depending on size, positioning you over the pedals in a true triathlon stance that keeps hip flexors open and glutes engaged — the kind of position that leaves something in your legs when you rack the bike and start the run. The dedicated carbon seatpost, proprietary carbon basebar, and integrated aerobars are all designed as part of a complete aero system, not added-on parts sourced from elsewhere.

Where the Pro spec earns its price is in the component choices that go beyond what you'd expect for this tier. The brakes are Shimano Dura-Ace R9180 hydraulic disc calipers — Tri/TT specific units — despite this being an Ultegra-level build in all other respects. In triathlon, braking performance matters on long descents where you're carrying speed into corners and transitions; the R9180 delivers consistent modulation regardless of how long the descent runs. The Shimano Ultegra R8100 crankset ships with a 4iiii Dual-Sided Power Meter already installed — left- and right-leg power data built into the build from day one, not an aftermarket addition.

Electronic shifting comes via Shimano Ultegra Di2 R8150 derailleurs, operated from Shimano SW-R9160 remote Tri/TT shifters mounted at the aerobar extensions — where your hands actually are when you're locked into the aero position. The cassette runs 11-30 over 12 speeds, giving you enough range for hilly race courses without sacrificing top-end gearing on flat sections.

The Vision Metron SC 60 i23 Carbon wheels round out a build focused on speed. At 60mm deep with a 23mm internal width, the Metron SC 60 is a genuine race wheel — enough depth to carry speed efficiently, with the i23 rim profile supporting wider tire setups that deliver real rolling resistance benefits. Continental Grand Prix 5000 TR tires in 700x25c are tubeless-ready out of the box.

Specs at a Glance

• Frame: FRD 12K Carbon Light
• Fork: FRD 12K Carbon Light
• Groupset: Shimano Ultegra Di2 R8150
• Crankset: Shimano Ultegra R8100, 52/36T with 4iiii Dual-Sided Power Meter
• Brakes: Shimano Dura-Ace R9180 Hydraulic Disc (Tri/TT)
• Rotors: Shimano CL800 Centerlock, 140mm
• Shifters: Shimano SW-R9160 Di2 Remote Tri/TT
• Cassette: Shimano Ultegra R8101, 12-speed 11-30
• Wheels: Vision Metron SC 60 i23 Carbon
• Tires: Continental Grand Prix 5000 TR, 700x25c
• Cockpit: Felt IA 2.0 Carbon Basebar + Felt IA 2.0 Carbon Aerobars
• Seatpost: IA 2.0 Carbon (dedicated)
• Saddle: Prologo Zero Tri PAS Tirox 136
• Weight: 9.5kg (Size M)
• Sizes: 48, 51, 54, 56, 58cm
• Pedals: Not included

Design Benefits

1. FRD 12K Carbon Light throughout — Felt's premium carbon specification on both frame and fork. The same construction used across the entire IA 2.0 lineup means you're not accepting a downgraded frame to reach the Ultegra price point.
2. Dura-Ace braking on an Ultegra build — The R9180 TT hydraulic calipers are a deliberate upgrade. Consistent modulation over long descents, with Tri/TT specific geometry that integrates cleanly into the cockpit.
3. 4iiii Dual-Sided Power Meter included — Left- and right-leg power data is already built into the crankset at purchase. No additional hardware, no installation, no additional cost.
4. Fully integrated tri cockpit — The Felt IA 2.0 carbon basebar and aerobars are designed for this frame specifically, resulting in a cleaner aero profile and a system that fits together without adapters or compromises.
5. Race-proven platform — The IA 2.0 is the bike Solveig Løvseth rode to the 2025 IRONMAN World Championship in Kona, with the fastest bike split of the race. The Pro spec rides the same FRD 12K Carbon Light frameset.

Final Take

The Felt IA 2.0 Pro Ultegra Di2 is a race-day triathlon bike built for the serious amateur competing at a meaningful level. At $9,999, the build includes a frameset Felt uses across the entire IA 2.0 lineup, Dura-Ace disc brakes, a factory-installed 4iiii dual-sided power meter, Vision Metron 60 carbon wheels, and tubeless-ready tires — all aligned toward a single purpose. If your goal is a fast time at your next IRONMAN or 70.3, this is a machine built for exactly that outcome.