Ribble ULTRA-RACE Red AXS

Name: Ribble ULTRA-RACE Red AXS
Brand: Ribble

2025 RoadAero Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £7,999 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 35–48t / 10–33t
Gear range: 453%
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XXS 149–161
XS 159–170
SM 167–174
MD 171–179
LG 176–184
XL 181–197

Components

5 of 21 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

Ultra-Race Frame Black/Black 42cm XXS Not identified

Suspension

1 part

Fork

Ultra-Race Carbon Fork 55 Rake Black/Black Not identified

Drivetrain

6 parts

Bottom bracket
- SRAM DUB BSA
Cassette
- SRAM RED XG-1290 12 speeds 10–33t
XG-1290
Chain

RED E1 Flattop 12/13spd Chain 120 Links Not identified
Crankset

RED AXS E1 Spdr PM Crankset 165mm 48-35 Not identified
Front derailleur
- SRAM RED AXS 12 speeds
Rear derailleur
- SRAM RED AXS 12 speeds

Brakes

3 parts

Brake levers

RED AXS E1 Shift Lever & Caliper RH Not identified
Brakes

RED AXS E1 Shift Lever & Caliper RH Not identified
Disc rotors
- SRAM Paceline X

Wheels and tires

4 parts

Front hub

Allroad Front Thru-Axle Not identified
Rear hub

Allroad SL/SL R/SL R e Rear Thru-Axle Not identified
Rims

303 SW Rear Wheel XDR Not identified
Tires

P Zero Race TLR Black 700x30mm Not identified

Cockpit and contact points

6 parts

Grips

Embossed Black Bar Tape Not identified
Handlebar

Aero Road Carbon INT Bar & Stem 38cm x 80mm Not identified
Headset

RS-2 Stem Headset Bearing Cover Kit Not identified

RS-2
Saddle

SL R Boost Carbon Superflow Saddle Not identified
Seatpost

Ultra-Race Carbon Seatpost Gloss Black 350mm Not identified
Stem

Aero Carbon Integrated Stem Spacer Kit Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 383mm

Stack 530mm

Wheelbase 985mm

Head angle 72.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	370	379	383	388	399	404
Stackmm	504	509	530	551	571	591
Top tube lengthmm	505	520	535	550	570	585
Seat tube lengthmm	420	470	500	520	540	560
Head tube lengthmm	110	115	130	150	170	190
Head tube angle	71°	71°	72°	72.5°	73°	73.3°
Seat tube angle	75°	74.5°	74°	73.5°	73.3°	73°
Chainstay lengthmm	410	410	410	410	410	410
Wheelbasemm	983	993	985	991	1004	1012
Front centermm	582	593	584	591	603	612
Bottom bracket dropmm	68	68	68	68	68	68
Bottom bracket heightmm	268	268	268	268	268	268
Fork rakemm	55	55	45	45	45	45
Trailmm	58	58	62	60	56	54
Stack/reach ratio	1.36	1.34	1.38	1.42	1.43	1.46
Suspension and parts
Crank lengthmm	165	165	170	170	172.5	172.5
Handlebar widthmm	380	380	400	400	420	420
Stem lengthmm	80	80	90	100	110	120

Not published by the manufacturer: Standover height, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 35
Largest chainring: 48
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 33
Lowest gear: 30.8 in
Highest gear: 139.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BSA
Tire width: 30c
Wheel material: Aluminum
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

30.8 gear inches

This value is within the central range for this class.

Cohort: Road / Aero Model year: 2025
Sample: 333 bicycles with this information
Coverage: 78.7% of the class

Highest gear

139.2 gear inches

This value is within the central range for this class.

Cohort: Road / Aero Model year: 2025
Sample: 333 bicycles with this information
Coverage: 78.7% of the class

Shifting

Electronic

330 of 418 bicycles with this information use electronic shifting.

Cohort: Road / Aero Model year: 2025
Sample: 418 bicycles with this information
Coverage: 98.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 53.3 km/h

Total gear range 453%

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: 30.8–139.2 gear inches
Class reference (p10–p90): 28.2–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Aero Model year: 2025
Lowest gear: 333 bicycles with this information, 78.7% of the class
Highest gear: 333 bicycles with this information, 78.7% 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 2025 builds

Differences across 2025 builds
Specification	This bicycle Ribble ULTRA-RACE Red AXS	Ribble Ultra-Aero SL - Enthusiast	Ribble Ultra-Aero SL - Pro	Ribble Ultra-Aero SL R - Enthusiast	Ribble Ultra-Aero SL R - Hero	Ribble Ultra-Aero SL R - Sport
Drivetrain
Smallest chainring	35	Not informed	36	36	36	34
Largest chainring	48	Not informed	52	52	52	50
Smallest sprocket	10	11	11	11	11	11
Largest sprocket	33	36	34	34	30	36
Lowest gear	30.8 in	Not informed	30.7 in	30.7 in	34.8 in	27.4 in
Highest gear	139.2 in	Not informed	137.1 in	137.1 in	137.1 in	131.8 in
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed	Not informed	Not informed	Not informed
Tire width	30c	28c	28c	28c	30c	28c
Wheel material	Aluminum	Aluminum	Carbon	Carbon	Aluminum	Aluminum