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2018 Specialized Tarmac Sport

Original specifications: geometry for 6 published sizes.

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At a glance

Model year
2018
Category
Road
Original MSRP
$1,900.00
Sizes
49, 52, 54, 56, 58, 61
Colors
Blue Tint/Metallic White Silver Clean, Rocket Red/Satin Black Clean, Sagan Superstar
Geometry
6 manufacturer sizes
In this record
19 specifications · 3 archived images · original MSRP · geometry
Archive ID
900003393
Model history 1 other year
Campaign
Original buildCarbon Fiber

Manufacturer catalog

Published sizes and colors

6 sizes · 3 colors

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

Published sizes

495254565861

Published colors

Blue Tint/Metallic White Silver CleanRocket Red/Satin Black CleanSagan Superstar

Frameset

Frame ConstructionSpecialized Tarmac SL4, FACT 9r carbon, compact race design, 1-3/8" lower bearing, threaded BB, 130mm spacing
Frame MaterialCarbon Fiber
ForkSpecialized FACT carbon, full monocoque
Fork MaterialCarbon Fiber

Drivetrain

ShiftersShimano 105
Front DerailleurShimano 105 Ez, braze-on
Rear DerailleurShimano 105, 11-speed
CranksetPraxis Alba M30, solid forged arms, 6061 chainrings, 110 BCD, 11-speed; chainrings: 50/34T
CassetteShimano 105, 11-speed, 11-28t
ChainKMC X11EL, 11-speed w/ Missing Link™
PedalsNylon, 105x78x28mm, loose balls w/ reflectors

Brakes

Brakes(F) Axis / (R) Axis

Cockpit & Contact Points

HandlebarSpecialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp
StemSpecialized, 3D forged alloy, 4-bolt, 7-degree rise
SaddleBody Geometry Toupé Sport, steel rails, 143mm
SeatpostSpecialized Comp carbon, single bolt

Wheels & Tires

Wheels(F) DT R460, sealed cartridge hubs, 14g spokes, 20h / (R) DT R460, sealed cartridge hubs, 14g spokes, 24h
Front TireEspoir Elite, 60 TPI, Kevlar® bead, 700x23mm
Rear TireEspoir Elite, 60 TPI, Kevlar® bead, 700x23mm

Geometry

6 sizes · 20 measurements

Frame measurements by size.

All geometry measurements6 sizes · 20 measurements
Measurement495254565861
Seat tube460 mm490 mm510 mm530 mm550 mm580 mm
Effective top tube517 mm537 mm548 mm565 mm583 mm601 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 mm977 mm987 mm1004 mm1014 mm
Bottom-bracket drop72 mm72 mm69 mm69 mm68 mm68 mm
Bottom-bracket height270 mm270 mm272.5 mm272.5 mm274 mm274 mm
Reach386 mm386 mm387 mm395 mm402 mm408 mm
Stack505 mm526 mm543 mm564 mm591 mm612 mm
Standover height730 mm755 mm775 mm795 mm826 mm850 mm
Fork offset / rake44 mm44 mm44 mm44 mm44 mm44 mm
Front center575 mm576 mm582 mm591 mm607 mm614 mm
Trail63 mm58 mm58 mm55 mm55 mm52 mm
Fork length / axle-to-crown368 mm368 mm368 mm368 mm368 mm368 mm
Seatpost length300 mm300 mm350 mm350 mm350 mm350 mm
Crank length170 mm170 mm172.5 mm172.5 mm175 mm175 mm
Stem length70 mm80 mm90 mm100 mm100 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 sizes50/34T · 11–28T · 11-speed
Lowest1.21:1 Highest4.55:1 Total range374%
Estimated speed At 90 RPM Lowest gear8.6 mph Highest gear32.0 mph

Rear tire: 700C×23.

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
Espoir Elite, 60 TPI, Kevlar® bead, 700x23mm Replacement search: 700cx23 bicycle tire Before ordering: Check rim type and tire clearance.
More parts (6)
Crankset · Original
Praxis Alba M30, solid forged arms, 6061 chainrings, 110 BCD, 11-speed; chainrings: 50/34T
Front derailleur · Original
Shimano 105 Ez, braze-on Search: Shimano 105 11-speed front derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers · Affiliate links
Rear derailleur · Original
Shimano 105, 11-speed Search: Shimano 105, 11-speed rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers · Affiliate links
Shifters · Original
Shimano 105 Search: Shimano 105 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
Stem · Original
Specialized, 3D forged alloy, 4-bolt, 7-degree rise

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 Sport · Road · Published sizes: 49, 52, 54, 56, 58, 61

Archived: Frame: Specialized Tarmac SL4, FACT 9r carbon, compact race design, 1-3/8" lower bearing, threaded BB, 130mm spacing · Fork: Specialized FACT carbon, full monocoque · Carbon Fiber

Archived: Shifters: Shimano 105 · Front derailleur: Shimano 105 Ez, braze-on · Rear derailleur: Shimano 105, 11-speed · Crankset: Praxis Alba M30, solid forged arms, 6061 chainrings, 110 BCD, 11-speed; chainrings: 50/34T · Cassette: Shimano 105, 11-speed, 11-28t · Chain: KMC X11EL, 11-speed w/ Missing Link™

Archived: Brakes: (F) Axis / (R) Axis

Archived: Wheels: (F) DT R460, sealed cartridge hubs, 14g spokes, 20h / (R) DT R460, sealed cartridge hubs, 14g spokes, 24h · Front tire: Espoir Elite, 60 TPI, Kevlar® bead, 700x23mm · Rear tire: Espoir Elite, 60 TPI, Kevlar® bead, 700x23mm

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: Body Geometry Toupé Sport, steel rails, 143mm · Pedals: Nylon, 105x78x28mm, loose balls w/ reflectors

Before and during the test ride

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Gallery3 images

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Campaign

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

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