Specialized S-Works Tarmac Disc eTap

Name: Specialized S-Works Tarmac Disc eTap
Brand: Specialized

2017 RoadRace Manufacturer page

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

14 of 17 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

S-Works FACT 11r carbon, disc only design, OSBB, full internal, electronic-specific routing, internally integrated seat clamp, QR, 135mm rear spacing Not identified

Suspension

1 part

Fork
- S-Works

Drivetrain

7 parts

Brakes

1 part

Brakes
- SRAM Red

Wheels and tires

2 parts

Rims
- Roval
Tires

Front: Turbo Cotton, 700x24mm, Rear: Turbo Cotton, 700x24mm Not identified

Cockpit and contact points

5 parts

Handlebar
- S-Works
Pedals

Nylon, 105x78x28mm, loose balls w/ reflectors Not identified
Saddle
- S-Works
Seatpost
- S-Works
Stem
- S-Works

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 54cm

Table

Reach 387mm

Stack 543mm

Wheelbase 978mm

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 Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	386	386	387	395	402	408
Stackmm	504	526	543	564	591	612
Top tube lengthmm	518	537	548	565	582	600
Seat tube lengthmm	431	462	481	501	522	553
Head tube lengthmm	100	120	140	160	190	210
Head tube angle	72.25°	73°	73°	73.5°	73.5°	74°
Seat tube angle	75.5°	74°	73.5°	73.25°	73°	72.5°
Chainstay lengthmm	405	405	405	405	407	410
Wheelbasemm	970	970	978	986	1003	1013
Front centermm	576	576	583	591	605	612
Bottom bracket dropmm	71.5	71.5	69	69	67.5	67.5
Bottom bracket heightmm	270	270	272.5	272.5	274	274
Standover heightmm	730	755	775	795	826	850
Fork rakemm	45	45	45	43	43	43
Trailmm	62	57	57	56	56	53
Stack/reach ratio	1.31	1.36	1.40	1.43	1.47	1.50
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	350	400	400	400

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

Bottom bracket standard: BB30
Tire width: 24c
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 / Race Model year: 2017
Sample: 239 bicycles with this information
Coverage: 97.5% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2017
Sample: 239 bicycles with this information
Coverage: 97.5% of the class

Shifting

Electronic

57 of 245 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2017
Sample: 245 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): 32.6–137.1 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2017
Lowest gear: 239 bicycles with this information, 97.5% of the class
Highest gear: 239 bicycles with this information, 97.5% 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 2017 builds

Differences across 2017 builds
Specification	This bicycle Specialized S-Works Tarmac Disc eTap	Specialized S-Works Tarmac Di2	Specialized S-Works Tarmac Dura-Ace	Specialized S-Works Tarmac eTap	Specialized S-Works Tarmac 32 eTap	Specialized Tarmac Comp
Drivetrain
Smallest chainring	36	Not informed	36	36	36	36
Largest chainring	52	Not informed	52	52	52	52
Largest sprocket	28	28	28	28	32	28
Lowest gear	37.3 in	Not informed	37.3 in	37.3 in	32.6 in	37.3 in
Highest gear	137.1 in	Not informed	137.1 in	137.1 in	137.1 in	137.1 in
Brakes
Brake type	Hydraulic disc	Rim brake	Rim brake	Rim brake	Rim brake	Rim brake
Cockpit
Seatpost	Rigid seatpost	Not informed	Rigid seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Shifting	Electronic	Electronic	Mechanical	Electronic	Electronic	Mechanical
Other specifications
Bottom bracket standard	BB30	BB30	BB30	BB30	BB30	BSA
Wheel material	Carbon	Carbon	Carbon	Carbon	Carbon	Aluminum