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2018 Specialized Tarmac

Original specifications: geometry for 6 published sizes.

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At a glance

Model year
2018
Category
Road
Original MSRP
$1,600.00
Sizes
49, 52, 54, 56, 58, 61
Colors
Bora Team Replica, Carbon/Flo Red Clean
Geometry
6 manufacturer sizes
In this record
19 specifications · 2 archived images · original MSRP · geometry
Archive ID
900003391
Campaign
Original buildCarbon Fiber

Manufacturer catalog

Published sizes and colors

6 sizes · 2 colors

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

Published sizes

495254565861

Published colors

Bora Team ReplicaCarbon/Flo Red Clean

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 Tiagra
Front DerailleurShimano Tiagra, braze-on
Rear DerailleurShimano Tiagra, long cage, 10-speed
CranksetPraxis Alba M30, solid forged arms, 6061 chainrings, 110 BCD, 11-speed; chainrings: 50/34T
CassetteShimano Tiagra, 10-speed, 12-28t
ChainKMC X10EL, 10-speed w/ Missing Link™
PedalsNylon, 105x78x28mm, loose balls w/ reflectors

Brakes

Brakes(F) Tektro Axis caliper / (R) Tektro Axis caliper

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 · 12–28T · 10-speed
Lowest1.21:1 Highest4.17:1 Total range343%
Estimated speed At 90 RPM Lowest gear8.6 mph Highest gear29.3 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 X10EL, 10-speed w/ Missing Link™
Cassette · Original
Shimano Tiagra, 10-speed, 12-28t Search: Shimano Tiagra, 10-speed, 12-28t 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 Tiagra, braze-on Search: Shimano Tiagra 10-speed front derailleur
Rear derailleur · Original
Shimano Tiagra, long cage, 10-speed Search: Shimano Tiagra, long cage, 10-speed rear derailleur
Shifters · Original
Shimano Tiagra Search: Shimano Tiagra 10-speed shifter
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.

Campaign
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
0 of 19 checked Progress stays in this browser for this bike.

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 · 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 Tiagra · Front derailleur: Shimano Tiagra, braze-on · Rear derailleur: Shimano Tiagra, long cage, 10-speed · Crankset: Praxis Alba M30, solid forged arms, 6061 chainrings, 110 BCD, 11-speed; chainrings: 50/34T · Cassette: Shimano Tiagra, 10-speed, 12-28t · Chain: KMC X10EL, 10-speed w/ Missing Link™

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

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

Follow the full used-bike inspection order →

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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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