Ridley Noah Ultegra

2018 RoadAero Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 36–52t / 11–28t
Gear range: 368%
Frame: Carbon
Brakes: Rim brake

Sizes

Size guide

48cm
51cm
54cm
57cm
60cm

The manufacturer did not publish rider heights for these sizes.

Components

11 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

Noah, 30T-24T HM UD Carbon, In-Mould F-Surface Technology Not identified

Suspension

1 part

Fork

Noah Aero 30T-24T Full Carbon Not identified

Drivetrain

6 parts

Cassette
- Shimano 105
Chain
- KMC X11 11 speeds
Crankset

Rotor 3D30 Aero 52/36 Not identified
Front derailleur
- Shimano Ultegra
Rear derailleur
- Shimano Ultegra
Shifters
- Shimano Ultegra

Brakes

1 part

Brakes
- Shimano Ultegra

Wheels and tires

2 parts

Cockpit and contact points

4 parts

Handlebar
- Forza
Saddle
- Forza
Seatpost

Noah SL Aero Carbon Seat Post Not identified
Stem
- Forza

Sizes and geometry

5 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 54cm

Table

Reach 384mm

Stack 542mm

Wheelbase 977mm

Head angle 73.0°

Seat angle 73.5°

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	379	374	384	390	396
Stackmm	507	527	542	573	599
Top tube lengthmm	516	525	545	565	585
Seat tube lengthmm	460	475	490	520	550
Head tube lengthmm	110	130	145	175	205
Head tube angle	72°	72°	73°	73.5°	73.5°
Seat tube angle	75°	74°	73.5°	73°	72.5°
Chainstay lengthmm	405	405	405	405	408
Wheelbasemm	970	970	977	987	1005
Front centermm	575	575	581	591	605
Bottom bracket dropmm	68	68	66	66	63
Bottom bracket heightmm	268	268	270	270	273
Standover heightmm	748	764	780	809	839
Fork rakemm	47	45	46	45	45
Trailmm	60	62	55	53	53
Stack/reach ratio	1.34	1.41	1.41	1.47	1.51

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 28
Lowest gear: 37.3 in
Highest gear: 137.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

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

37.3 gear inches

This value is within the central range for this class.

Cohort: Road / Aero Model year: 2018
Sample: 90 bicycles with this information
Coverage: 96.7% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Aero Model year: 2018
Sample: 90 bicycles with this information
Coverage: 96.7% of the class

Shifting

Mechanical

41 of 93 bicycles with this information use electronic shifting.

Cohort: Road / Aero Model year: 2018
Sample: 93 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 14.3 km/h
Highest gear: 52.5 km/h

Total gear range 368%

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: 37.3–137.1 gear inches
Class reference (p10–p90): 34.8–137.1 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Aero Model year: 2018
Lowest gear: 90 bicycles with this information, 96.7% of the class
Highest gear: 90 bicycles with this information, 96.7% 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 2018 builds
Specification	This bicycle Ridley Noah Ultegra	Ridley Noah Mix 105	Ridley Noah SL Disc Aero+	Ridley Noah SL Disc Potenza	Ridley Noah SL Disc Ultegra	Ridley Noah SL Disc Ultegra Di2
Drivetrain
Smallest chainring	36	34	36	36	36	36
Largest chainring	52	50	52	52	52	52
Smallest sprocket	11	11	11	12	11	11
Largest sprocket	28	28	28	27	28	28
Lowest gear	37.3 in	35.2 in	37.3 in	38.7 in	37.3 in	37.3 in
Highest gear	137.1 in	131.8 in	137.1 in	125.7 in	137.1 in	137.1 in
Brakes
Brake type	Rim brake	Rim brake	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Mechanical	Mechanical	Electronic
Other specifications
Wheel material	Carbon	Aluminum	Carbon	Aluminum	Aluminum	Carbon