Specialized Roubaix Expert

Name: Specialized Roubaix Expert
Brand: Specialized

2017 RoadEndurance Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 34–50t / 11–32t
Gear range: 428%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

49cm 155–163
52cm 161–169
54cm 166–175
56cm 172–181
58cm 178–186
61cm 183–191

Components

12 of 16 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

Specialized FACT 10r carbon, Endurance Geometry, Rider-First Engineered™, 12x142mm thru-axle, Future Shock suspension, 20mm of travel, flat disc mounts Not identified

Suspension

1 part

Fork
- S-Works

Drivetrain

6 parts

Brakes

1 part

Brakes
- Shimano BR-RS805
BR-RS805

Wheels and tires

2 parts

Rims

Front: DT R470 Disc Pro, thru-axle, 2Bliss Ready, Rear: DT R470 Disc Pro, thru-axle, 2Bliss Ready Not identified
Tires

Front: Turbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x26mm, Rear: Turbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x26mm Not identified

Cockpit and contact points

5 parts

Handlebar
- Specialized
Pedals

Nylon, 105x78x28mm, loose balls w/ reflectors Not identified
Saddle
- GT
Seatpost
- Specialized
Stem
- Specialized

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 54cm

Table

Reach 375mm

Stack 585mm

Wheelbase 987mm

Head angle 72.8°

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	369	371	375	381	386	392
Stackmm	549	569	585	611	644	665
Top tube lengthmm	527	534.9	545	561.8	576.3	588.5
Seat tube lengthmm	425	462	481	501	522	563
Head tube lengthmm	90	110	125	150	185	205
Head tube angle	72°	72.25°	72.75°	73.5°	73.5°	74°
Seat tube angle	74°	74°	74°	73.5°	73.5°	73.5°
Chainstay lengthmm	413	413	415	415	418	418
Wheelbasemm	981	987	987	993	1011	1018
Front centermm	580	586	584	590	605	612
Bottom bracket dropmm	77.5	77.5	76	76	74.5	74.5
Bottom bracket heightmm	258	258	260	260	261	261
Standover heightmm	715.5	743	762	785	813	844.3
Fork rakemm	50	50	44	44	44	44
Trailmm	58.5	57	61	55	55	52
Stack/reach ratio	1.49	1.53	1.56	1.60	1.67	1.70
Suspension and parts
Crank lengthmm	170	170	172.5	172.5	175	175
Handlebar widthmm	400	420	420	420	440	440
Stem lengthmm	75	90	100	100	110	110
Seatpost lengthmm	350	350	400	400	400	450

Not published by the manufacturer: Front travel, Rear travel, Stem angle 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: 34
Largest chainring: 50
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 26c
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 / Endurance Model year: 2017
Sample: 311 bicycles with this information
Coverage: 99.6% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2017
Sample: 311 bicycles with this information
Coverage: 99.6% of the class

Shifting

Mechanical

31 of 312 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2017
Sample: 312 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 50.5 km/h

Total gear range 428%

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: 30.8–131.8 gear inches
Class reference (p10–p90): 30.8–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2017
Lowest gear: 311 bicycles with this information, 99.6% of the class
Highest gear: 311 bicycles with this information, 99.6% 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 2017 builds

Differences across 2017 builds
Specification	This bicycle Specialized Roubaix Expert	Specialized Roubaix Comp	Specialized Roubaix Elite	Specialized Roubaix Pro Di2	Specialized Roubaix SL4	Specialized Roubaix SL4 Comp Di2
Drivetrain
Rear sprockets	11	11	11	11	10	11
Largest sprocket	32	32	32	32	34	32
Lowest gear	30.8 in	30.8 in	30.8 in	30.8 in	29.0 in	30.8 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc	Rim brake	Rim brake
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Mechanical	Electronic
Other specifications
Tire width	26c	26c	26c	26c	25c	26c