Felt IAx Advanced Ultegra Di2

2023 RoadTriathlon Manufacturer page

Felt IAx Advanced Ultegra Di2, color Turquoise

Price: Not published

Prices shown first for United States
United Kingdom: £6,599 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 36–52t / 11–30t
Gear range: 394%
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

48cm 152.4–169
51cm 166–174
54cm 171–182
56cm 179–189
58cm 186–195.5

Components

14 of 15 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Felt IAx 1.0, UHC Advanced Not identified

Suspension

1 part

Fork
- Felt

Drivetrain

6 parts

Cassette
- Shimano Ultegra CS-R8100 11–30t
CS-R8100
Chain
- Shimano Deore XT CN-M8100
CN-M8100
Crankset
- Shimano Ultegra FC-R8100 52/36t
FC-R8100
Front derailleur
- Shimano Ultegra FD-R8150 2 speeds
FD-R8150
Rear derailleur
- Shimano Ultegra RD-R8150 12 speeds
RD-R8150
Shifters
- TRP
HD-T910D

Brakes

2 parts

Brakes
- TRP TT HYDRAULIC
HD-T910
Disc rotors
- TRP TR-25
TR-25

Wheels and tires

2 parts

Cockpit and contact points

3 parts

Handlebar
- Devox
Saddle
- ISM
Seatpost
- Felt

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 54cm

Table

Geometry diagram unavailable

The drawing needs chainstay length, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	378	392	404	421	440
Stackmm	473	495	520	544	566
Top tube lengthmm	467	490	510	538	567
Seat tube lengthmm	489	512	538	563	586
Head tube lengthmm	63	86	109	134	157
Head tube angle	71.5°	71.5°	72°	72°	72°
Seat tube angle	79.5°	79°	78.5°	78°	77.5°
Wheelbasemm	958	980	990	1016	1042
Bottom bracket dropmm	72	72	72	72	72
Bottom bracket heightmm	264	264	264	264	264
Stack/reach ratio	1.25	1.26	1.29	1.29	1.29
Suspension and parts
Crank lengthmm	165	165	170	170	172.5

Not published by the manufacturer: Chainstay length, Front center, Standover height, Fork rake, Trail, Front travel, Rear travel, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Fork material: Carbon
Weight limit: 129 kg

284.4 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 30
Lowest gear: 34.8 in
Highest gear: 137.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Tire width: 25c
Wheel material: Carbon
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

34.8 gear inches

This value is within the central range for this class.

Cohort: Road / Triathlon Model year: 2023
Sample: 132 bicycles with this information
Coverage: 77.6% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Triathlon Model year: 2023
Sample: 132 bicycles with this information
Coverage: 77.6% of the class

Shifting

Electronic

124 of 170 bicycles with this information use electronic shifting.

Cohort: Road / Triathlon Model year: 2023
Sample: 170 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.3 km/h
Highest gear: 52.5 km/h

Total gear range 394%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 34.8–137.1 gear inches
Class reference (p10–p90): 30.7–139.7 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Triathlon Model year: 2023
Lowest gear: 132 bicycles with this information, 77.6% of the class
Highest gear: 132 bicycles with this information, 77.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2023 builds

Differences across 2023 builds
Specification	This bicycle Felt IAx Advanced Ultegra Di2	Felt IAx Advanced 105	Felt IAx Advanced 105 Di2	Felt IAx Advanced, Rim Brake 105	Felt IAx Advanced Rival eTap AXS
Frame
Weight limit	129 kg	129 kg	129 kg	Not informed	129 kg
Frame material	Not informed	Not informed	Not informed	Carbon	Not informed
Drivetrain
Smallest chainring	36	34	34	36	35
Largest chainring	52	50	50	52	48
Rear sprockets	12	12	12	11	12
Largest sprocket	30	34	34	28	30
Lowest gear	34.8 in	29.0 in	29.0 in	37.3 in	33.8 in
Highest gear	137.1 in	131.8 in	131.8 in	137.1 in	126.6 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Rim brake	Hydraulic disc
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Not informed	Rigid seatpost
Shifting	Electronic	Mechanical	Electronic	Mechanical	Electronic
Other specifications
Tire width	25c	25c	25c	Not informed	25c
Wheel material	Carbon	Aluminum	Carbon	Not informed	Carbon
Bottom bracket standard	Not informed	BB86/BB92	Not informed	Not informed	Not informed