Felt IAx Advanced 105 Di2 Triathlon Bike – Astral

Felt IAx Advanced 105 Di2 Triathlon Bike – Astral

The Felt IAx Advanced 105 Di2 is a race-focused triathlon bike designed to deliver aerodynamic speed, efficient power transfer and a precise riding position. Built around Felt's IAx 1.0 UHC Advanced carbon frame and fork, it combines an aerodynamic platform with modern electronic shifting and hydraulic disc brakes.

Finished in Astral, the IAx Advanced 105 Di2 brings Shimano's 12-speed 105 Di2 electronic drivetrain to Felt's proven triathlon platform. Reynolds AR58/62 carbon wheels, an adjustable Devox Bayonet 3.1 cockpit and integrated storage complete a race-ready package designed for everything from short-course racing to long-distance triathlon.

Key Features

• High-performance Felt IAx 1.0 UHC Advanced carbon frame

• UHC Advanced carbon fork

• Shimano 105 Di2 2x12-speed electronic drivetrain

• Shimano 105 50/34T crankset

• Shimano 105 11-34T 12-speed cassette

• TRP HD-T910 hydraulic disc brakes

• Reynolds AR58/62 DB Custom carbon wheelset

• Continental Grand Prix SL 700x25c tyres

• Adjustable Devox Bayonet 3.1 aero cockpit

• ISM PS1.0 triathlon saddle

• Felt AeroTRI UHC Advanced carbon seatpost

• Integrated IA CALpac 2.0 and IA BTSpac storage

• Designed around an adjustable, aerodynamic triathlon position

Aerodynamic Carbon Performance
The IAx Advanced uses Felt's UHC Advanced carbon construction and aerodynamic frame design to create a fast, efficient race platform. The streamlined frame and fork are purpose-built for triathlon, helping reduce drag while maintaining the stability needed at high speeds.

Shimano 105 Di2 Electronic Shifting
Shimano 105 Di2 delivers fast, precise electronic shifting across a wide-ranging 12-speed drivetrain. The 50/34T crankset and 11-34T cassette provide versatile gearing for everything from steep climbs to high-speed sections, while the integrated TRI/TT shift controls keep gear changes within easy reach.

Race-Ready Fit & Equipment
The Devox Bayonet 3.1 cockpit allows the base bar and extensions to be individually adjusted for a more precise aerodynamic position. Reynolds AR58/62 carbon wheels provide a deep-section aero profile, while integrated CALpac 2.0 and BTSpac storage keep nutrition and essential equipment neatly organised for race day.

Specification

Sizing

Sizing is a general guide only. Triathlon bike fit is particularly important due to the more aggressive riding position. Rider proportions, flexibility and preferred position can affect the ideal size.

Specifications are subject to change without notice. Components may be substituted by the manufacturer due to availability.