Specialized S-Works Roubaix SL8 Shimano Dura-Ace Di2

Name: Specialized S-Works Roubaix SL8 Shimano Dura-Ace Di2
Brand: Specialized

2025 RoadEndurance Manufacturer page

Specialized S-Works Roubaix SL8 Shimano Dura-Ace Di2, color Gloss Toupe / Gunmetal Strata / Charcoal

Last known price: $12,249

Prices shown first for United States
Wheels: 700c
Drivetrain: 2 × 12 34–50t / 11–34t
Gear range: 455%
Weight: 7.25 kg 16.0 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

44cm
49cm
52cm
54cm
56cm
58cm
61cm

The manufacturer did not publish rider heights for these sizes.

Components

15 of 18 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

FACT 12R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc Not identified

Suspension

1 part

Fork

Future Shock 3.3 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc Not identified

Drivetrain

8 parts

Brakes

1 part

Brakes
- Shimano Dura-Ace

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Grips

Supacaz Super Sticky Kush Not identified
Handlebar
- S-Works
Saddle
- S-Works
Seatpost
- S-Works
Stem
- S-Works

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 54cm

Table

Reach 381mm

Stack 585mm

Wheelbase 1005mm

Head angle 72.3°

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 Reach Stack

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	353	363	370	381	389	397	403
Stackmm	543	549	566	585	605	630	665
Top tube lengthmm	503	523	534	550	569	584	600
Seat tube lengthmm	365	410	445	465	485	505	545
Head tube lengthmm	90	90	105	122	140	168	202
Head tube angle	69.3°	70.8°	71.5°	72.3°	73°	73°	73.5°
Seat tube angle	75°	74°	74°	74°	73.5°	73.5°	73.5°
Chainstay lengthmm	418	418	418	420	420	423	423
Wheelbasemm	994	992	988	1005	1012	1031	1042
Front centermm	589	587	593	598	604	620	631
Bottom bracket dropmm	80	80	80	78	78	78	78
Bottom bracket heightmm	269	269	269	270	270	271	271
Standover heightmm	686	719	747	766	787	809	847
Fork rakemm	52	52	52	47	47	47	47
Trailmm	76	66	62	61	57	57	54
Stack/reach ratio	1.54	1.51	1.53	1.54	1.56	1.59	1.65
Suspension and parts
Crank lengthmm	165	165	170	172.5	172.5	175	175
Handlebar widthmm	360	380	400	420	420	440	440
Stem lengthmm	70	80	90	100	100	110	110
Seatpost lengthmm	380	380	380	380	380	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
Bicycle weight: 7.25 kg

16.0 lb

Suspension

Suspension configuration: Hardtail

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 29.0 in
Highest gear: 131.8 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
Power meter: Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter, 50/34t
Additional specification: Model display: Precision Pro
Additional specification: Model id: precision-pro
Tire clearance: Maximum tire width: 40c
Tire width: 32c
Travel: Front: Additional specification: Not available: No
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

29.0 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2025
Sample: 546 bicycles with this information
Coverage: 81.8% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2025
Sample: 546 bicycles with this information
Coverage: 81.8% of the class

Shifting

Electronic

356 of 663 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2025
Sample: 663 bicycles with this information
Coverage: 99.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 50.5 km/h

Total gear range 455%

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: 29.0–131.8 gear inches
Class reference (p10–p90): 26.6–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2025
Lowest gear: 546 bicycles with this information, 81.8% of the class
Highest gear: 546 bicycles with this information, 81.8% 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 2025 builds

Differences across 2025 builds
Specification	This bicycle Specialized S-Works Roubaix SL8 Shimano Dura-Ace Di2	Specialized Roubaix SL8	Specialized Roubaix SL8 Comp	Specialized Roubaix SL8 Comp Shimano 105 Di2	Specialized Roubaix SL8 Expert	Specialized Roubaix SL8 Expert SRAM Rival eTap AXS
Frame
Bicycle weight	7.25 kg	9.46 kg	8.97 kg	8.97 kg	8.62 kg	8.62 kg
Drivetrain
Smallest chainring	34	34	34	34	33	33
Largest chainring	50	50	50	50	46	46
Rear sprockets	12	10	12	12	12	12
Smallest sprocket	11	11	11	11	10	10
Largest sprocket	34	34	36	36	36	36
Lowest gear	29.0 in	29.0 in	27.4 in	27.4 in	26.6 in	26.6 in
Highest gear	131.8 in	131.8 in	131.8 in	131.8 in	133.4 in	133.4 in
Cockpit
Shifting	Electronic	Mechanical	Electronic	Electronic	Electronic	Electronic
Other specifications
Power meter	Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter, 50/34tAdditional specification: Model display: Precision ProAdditional specification: Model id: precision-pro	Not informed	Not informed	Not informed	Not informed	Not informed
Wheel material	Carbon	Aluminum	Aluminum	Aluminum	Carbon	Carbon