Specialized Roubaix Expert UDi2

Name: Specialized Roubaix Expert UDi2
Brand: Specialized

2018 RoadEndurance Manufacturer page

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

Sizes

Size guide

49cm
52cm
54cm
56cm
58cm
61cm
64cm

The manufacturer did not publish rider heights for these sizes.

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 R460 Disc, thru-axle, 2Bliss Ready, Rear: DT R460 Disc, 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
- Specialized
Seatpost
- Specialized
Stem
- Specialized

Sizes and geometry

7 sizes Open in the geometry plotter

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

Size 56cm

Table

Reach 381mm

Stack 611mm

Wheelbase 993mm

Head angle 73.5°

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 7 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	369	371	375	381	386	392	403
Stackmm	549	569	585	611	644	665	679
Top tube lengthmm	527	534.9	545	561.8	576.3	588.5	610
Seat tube lengthmm	425	462	481	501	522	563	584
Head tube lengthmm	90	110	125	150	185	205	220
Head tube angle	72°	72.25°	72.75°	73.5°	73.5°	74°	74°
Seat tube angle	74°	74°	74°	73.5°	73.5°	73.5°	73°
Chainstay lengthmm	413	413	415	415	418	418	418
Wheelbasemm	981	987	987	993	1011	1018	1033
Front centermm	580	586	584	590	605	612	626
Bottom bracket dropmm	77.5	77.5	76	76	74.5	74.5	74.5
Bottom bracket heightmm	258	258	260	260	261	261	261
Standover heightmm	715.5	743	762	785	813	844.3	860.8
Fork rakemm	50	50	44	44	44	44	44
Trailmm	59	57	61	55	55	52	52
Stack/reach ratio	1.49	1.53	1.56	1.60	1.67	1.70	1.69
Suspension and parts
Crank lengthmm	170	170	172.5	172.5	175	175	175
Handlebar widthmm	400	420	420	420	440	440	440
Stem lengthmm	75	90	100	100	110	110	120
Seatpost lengthmm	350	350	400	400	400	450	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: 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: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

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

37.3 gear inches

This value is above the central range for this class.

Cohort: Road / Endurance Model year: 2018
Sample: 306 bicycles with this information
Coverage: 96.5% of the class

Highest gear

137.1 gear inches

This value is above the central range for this class.

Cohort: Road / Endurance Model year: 2018
Sample: 306 bicycles with this information
Coverage: 96.5% of the class

Shifting

Electronic

54 of 317 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2018
Sample: 317 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): 29.0–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2018
Lowest gear: 306 bicycles with this information, 96.5% of the class
Highest gear: 306 bicycles with this information, 96.5% 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

Differences across 2018 builds
Specification	This bicycle Specialized Roubaix Expert UDi2	Specialized Men's-Works Roubaix – Sagan Collection Di2	Specialized Roubaix Comp	Specialized Roubaix Comp – Sagan Collection	Specialized Roubaix Elite	Specialized Roubaix Expert
Drivetrain
Smallest chainring	36	34	34	34	34	34
Largest chainring	52	50	50	50	50	50
Largest sprocket	28	30	32	32	32	32
Lowest gear	37.3 in	32.9 in	30.8 in	30.8 in	30.8 in	30.8 in
Highest gear	137.1 in	131.8 in	131.8 in	131.8 in	131.8 in	131.8 in
Cockpit
Shifting	Electronic	Electronic	Mechanical	Mechanical	Mechanical	Mechanical
Other specifications
Tire width	26c	28c	28c	28c	28c	28c
Wheel material	Aluminum	Carbon	Aluminum	Aluminum	Aluminum	Aluminum
Power meter	Not informed	S-Works Power Cranks—Dual, dual-sided power meter, 50/34T	Not informed	Not informed	Not informed	Not informed