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2018 Specialized Tarmac Comp Disc

Original specifications: geometry for 6 published sizes.

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At a glance

Model year
2018
Category
Road
Original MSRP
$3,000.00
Sizes
49, 52, 54, 56, 58, 61
Colors
Rocket Red/Tarmac Black/Satin Black Clean
Geometry
6 manufacturer sizes
In this record
20 specifications · archived image · original MSRP · geometry
Archive ID
900003405
Model history 1 other year
Campaign
Original buildCarbon Fiber

Manufacturer catalog

Published sizes and colors

6 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

495254565861

Published colors

Rocket Red/Tarmac Black/Satin Black Clean

Frameset

Frame ConstructionSpecialized FACT 10r carbon, threaded BB, full internal cable routing, internally integrated seat clamp, 135mm rear spacing, post disc mount
Frame MaterialCarbon Fiber
ForkSpecialized FACT carbon, full monocoque
Fork MaterialCarbon Fiber

Drivetrain

ShiftersShimano Ultegra Disc 8020, 11-speed
Front DerailleurShimano Ultegra 8000, braze-on
Rear DerailleurShimano Ultegra 8000, 11-speed
CranksetShimano Ultegra R8000; chainrings: 52/36T
Bottom BracketShimano Ultegra
CassetteShimano 105, 11-speed, 11-28t
ChainKMC X11EL, 11-speed w/ Missing Link™
PedalsNylon, 105x78x28mm, loose balls w/ reflectors

Brakes

Brakes(F) Shimano RS785, hydraulic disc / (R) Shimano RS785, hydraulic disc

Cockpit & Contact Points

HandlebarSpecialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp
StemSpecialized, 3D forged alloy, 4-bolt, 7-degree rise
SaddleToupe Comp Gel, 143mm, hollow Cr-Mo, Adaptive Edge
SeatpostSpecialized Comp carbon, single bolt

Wheels & Tires

Wheels(F) DT R470 Disc, sealed cartridge hubs, 14g spokes, 24h / (R) DT R470 Disc, sealed cartridge hubs, 14g spokes, 24h
Front TireS-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x24mm
Rear TireS-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x24mm

Geometry

6 sizes · 20 measurements

Frame measurements by size.

All geometry measurements6 sizes · 20 measurements
Measurement495254565861
Seat tube431 mm462 mm481 mm501 mm522 mm553 mm
Effective top tube518 mm537 mm548 mm565 mm582 mm600 mm
Head tube100 mm120 mm140 mm160 mm190 mm210 mm
Head-tube angle72.25°73°73°73.5°73.5°74°
Seat-tube angle75.5°74°73.5°73.25°73°72.5°
Chainstay / rear center405 mm405 mm405 mm405 mm407 mm410 mm
Wheelbase970 mm970 mm978 mm986 mm1003 mm1013 mm
Bottom-bracket drop71.5 mm71.5 mm69 mm69 mm67.5 mm67.5 mm
Bottom-bracket height270 mm270 mm272.5 mm272.5 mm274 mm274 mm
Reach386 mm386 mm387 mm395 mm402 mm408 mm
Stack504 mm526 mm543 mm564 mm591 mm612 mm
Standover height730 mm755 mm775 mm795 mm826 mm850 mm
Fork offset / rake45 mm45 mm45 mm43 mm43 mm43 mm
Front center576 mm576 mm583 mm591 mm605 mm612 mm
Trail62 mm57 mm57 mm56 mm56 mm53 mm
Fork length / axle-to-crown368 mm368 mm368 mm368 mm368 mm368 mm
Seatpost length350 mm350 mm350 mm400 mm400 mm400 mm
Crank length170 mm170 mm172.5 mm172.5 mm175 mm175 mm
Stem length70 mm80 mm90 mm100 mm110 mm110 mm
Handlebar width400 mm420 mm420 mm420 mm440 mm440 mm

Dimensions as recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes52/36T · 11–28T · 11-speed
Lowest1.29:1 Highest4.73:1 Total range368%
Estimated speed At 90 RPM Lowest gear9.1 mph Highest gear33.4 mph

Rear tire: 700C×24.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC X11EL, 11-speed w/ Missing Link™
Cassette · Original
Shimano 105, 11-speed, 11-28t Search: Shimano 105, 11-speed, 11-28t cassette
Front tire · Original
S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x24mm
More parts (6)
Bottom bracket · Original
Shimano Ultegra
Crankset · Original
Shimano Ultegra R8000; chainrings: 52/36T
Retailer offers · Affiliate links
Front derailleur · Original
Shimano Ultegra 8000, braze-on Search: Shimano Ultegra 11-speed front derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Rear derailleur · Original
Shimano Ultegra 8000, 11-speed Search: Shimano Ultegra 8000, 11-speed rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shifters · Original
Shimano Ultegra Disc 8020, 11-speed Search: Shimano Ultegra Disc 8020, 11-speed shifter Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Handlebar · Original
Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp

Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.

Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
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This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2018 Specialized Tarmac Comp Disc · Road · Published sizes: 49, 52, 54, 56, 58, 61

Archived: Frame: Specialized FACT 10r carbon, threaded BB, full internal cable routing, internally integrated seat clamp, 135mm rear spacing, post disc mount · Fork: Specialized FACT carbon, full monocoque · Carbon Fiber

Archived: Shifters: Shimano Ultegra Disc 8020, 11-speed · Front derailleur: Shimano Ultegra 8000, braze-on · Rear derailleur: Shimano Ultegra 8000, 11-speed · Crankset: Shimano Ultegra R8000; chainrings: 52/36T · Bottom bracket: Shimano Ultegra · Cassette: Shimano 105, 11-speed, 11-28t · Chain: KMC X11EL, 11-speed w/ Missing Link™

Archived: Brakes: (F) Shimano RS785, hydraulic disc / (R) Shimano RS785, hydraulic disc

Archived: Wheels: (F) DT R470 Disc, sealed cartridge hubs, 14g spokes, 24h / (R) DT R470 Disc, sealed cartridge hubs, 14g spokes, 24h · Front tire: S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x24mm · Rear tire: S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x24mm

Controls and contact points

Archived: Handlebar: Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp · Stem: Specialized, 3D forged alloy, 4-bolt, 7-degree rise · Seatpost: Specialized Comp carbon, single bolt · Saddle: Toupe Comp Gel, 143mm, hollow Cr-Mo, Adaptive Edge · Pedals: Nylon, 105x78x28mm, loose balls w/ reflectors

Before and during the test ride

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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