Ridley Helium SLX Ultegra

2018 RoadRace 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
63cm

The manufacturer did not publish rider heights for these sizes.

Components

12 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

Helium SLX, 60T-40T-30T HM UD Carbon Not identified

Suspension

1 part

Fork

Helium SLX, 60T-40T-30T HM UD Carbon Not identified

Drivetrain

6 parts

Cassette
- Shimano 105
Chain
- KMC X11 11 speeds
Crankset

Rotor 3D30 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

Sizes and geometry

6 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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	379	374	384	390	396	403
Stackmm	507	526	542	573	599	625
Top tube lengthmm	515	525	545	565	585	600
Seat tube lengthmm	450	480	510	540	570	600
Head tube lengthmm	107	127	142	172	202	227
Head tube angle	71.8°	72°	73°	73.5°	73.5°	74°
Seat tube angle	75°	74°	73.5°	73°	72.5°	72.5°
Chainstay lengthmm	405	405	405	405	408	408
Wheelbasemm	970	969	977	986	1005	1014
Front centermm	575	574	581	590	605	614
Bottom bracket dropmm	68	68	66	66	63	63
Bottom bracket heightmm	268	268	270	270	273	273
Standover heightmm	721	755	775	804	834	961
Fork rakemm	45	45	46	44	45	45
Trailmm	63	62	55	54	53	50
Stack/reach ratio	1.34	1.41	1.41	1.47	1.51	1.55

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: 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

37.3 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2018
Sample: 267 bicycles with this information
Coverage: 90.8% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2018
Sample: 267 bicycles with this information
Coverage: 90.8% of the class

Shifting

Mechanical

82 of 294 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2018
Sample: 294 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): 30.8–137.1 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2018
Lowest gear: 267 bicycles with this information, 90.8% of the class
Highest gear: 267 bicycles with this information, 90.8% 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 Helium SLX Ultegra	Ridley Helium SLA Mix 105	Ridley Helium SLA Disc Mix 105	Ridley Helium SLA Disc Ultegra	Ridley Helium SLA Ultegra	Ridley Helium SLX Ultegra Di2
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Drivetrain
Smallest chainring	36	Not informed	34	36	36	Not informed
Largest chainring	52	Not informed	50	52	52	Not informed
Smallest sprocket	11	11	11	11	11	Not informed
Largest sprocket	28	28	28	28	28	Not informed
Lowest gear	37.3 in	Not informed	35.2 in	37.3 in	37.3 in	Not informed
Highest gear	137.1 in	Not informed	131.8 in	137.1 in	137.1 in	Not informed
Brakes
Brake type	Rim brake	Rim brake	Mechanical disc	Mechanical disc	Rim brake	Rim brake
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Mechanical	Mechanical	Electronic