Specialized Tarmac S-Works SL8

Specialized

TarmacS-Works SL8

FrameS‑Works Tarmac SL8 FACT c…S‑Works Tarmac SL8 FACT car…
GroupsetSRAM RED AXS (eTap) shi…SRAM RED AXS 12-speed cas…
WheelsRoval Rapide CLX II tub…S‑Works Turbo (tubeless‑rea…
Tire clearance32 mm

The Specialized Tarmac SL8 represents the brand's current vision of a singular WorldTour race platform, merging the aerodynamic focus of discontinued aero models with the low weight of dedicated climbing frames. Introduced for the 2024 model year, the SL8 is built for competitive racers and serious enthusiasts who want a single bike optimized for varied terrain. The most visible shift from the previous generation is the elongated nose-cone head tube, designed to smooth airflow at the leading edge. Behind that striking front end, the frame profiles slim down significantly, utilizing narrower seat tubes and seatposts to shed weight and add compliance. By focusing aerodynamic shapes only where they matter most, Specialized managed to drop the top-tier frame weight to a claimed 685 grams while maintaining the familiar handling characteristics of its predecessor. It is a highly refined, uncompromising race machine that balances straight-line speed with climbing agility.

Specialized Tarmac
Year
Build
Size
01 / Buy

Where to get it.

1 retailer · size 54.

Size
1 retailer · Size 54
02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
2 components
FrameS‑Works Tarmac SL8 FACT carbon frame
ForkS‑Works Tarmac SL8 FACT carbon fork (integrated steerer)
02Drivetrain & brakes
11 components
ChainSRAM 12-speed chain
Bottom bracketSpecialized OSBB (integrated bottom bracket)
Front rotor160mm
Rear rotor160mm
04Cockpit & contact
4 components
03 / Geometry

Geometry & fit.

7 sizes published.

Specialized carried over the geometry from the previous generation, maintaining the aggressive, race-oriented fit that the Tarmac is known for. The frame features a steep head tube angle and short chainstays across the size run, keeping the wheelbase tight for rapid direction changes and sharp cornering. Riders can expect a long and low posture designed to maximize aerodynamic efficiency, which requires a fair amount of flexibility to sustain comfortably over long distances.

Fit adjustability depends heavily on the chosen build tier. The top-end models feature a proprietary one-piece carbon cockpit that routes cables internally. While this setup reduces drag, it locks the rider into a fixed stem length and bar width, making aftermarket fit adjustments an expensive endeavor. Lower-tier builds utilize a traditional two-piece bar and stem, offering much greater flexibility to swap components and dial in the reach. Across all sizes, the frame clears tires up to 32mm wide, giving riders ample room to fine-tune the bike's footprint and handling characteristics for rougher pavement without altering the core race geometry.

Reach × Stack · size 54mm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

630590550510470STACK ↑345365385405425REACH →ENDURANCERACE / AEROSize 54384 · 544
01Fit geometry6 values
Stack544 mm
Reach384 mm
Top tube541 mm
Headtube length137 mm
Standover height768 mm
Seat tube length473 mm
02Component geometry4 values
Crank length172.5 mm
Handlebar width400 mm
Stem length100 mm
Saddle width143 mm
03Handling geometry9 values
Headtube angle73°
Seat tube angle74°
BB height268 mm
BB drop72 mm
Trail58 mm
Offset44 mm
Front center579 mm
Wheelbase978 mm
Chainstay length410 mm

Which size should I buy?

Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.

Your height
5'8"173 cm
5'0"5'5"5'10"6'3"6'7"
Recommended size54Based on stack, reach & ETT for your height · score 90/100.

Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.

04 / Other builds

The lineup.

12 builds, ranging $4,700 – $13,500.

The SL8 lineup is divided by carbon grade and component spec, spanning from premium superbikes to more accessible competitive builds. The flagship S-Works models utilize the lightest FACT 12r carbon layup and are equipped with top-tier electronic groupsets from Shimano or SRAM, dual-sided power meters, and deep-section Roval Rapide CLX carbon wheels. These builds also feature the integrated carbon cockpit, prioritizing absolute aerodynamic performance and weight reduction.

Moving down the ladder, the Pro and Expert models use a slightly heavier FACT 10r carbon frame. The Pro tier is frequently highlighted by reviewers as the sweet spot for value, delivering near-identical on-road performance to the S-Works but at a substantially lower price. It features second-tier electronic drivetrains, often includes a power meter, and rolls on slightly heavier Roval carbon wheels. The Expert and Comp builds round out the range with third-tier electronic shifting and shallower carbon or alloy wheels. These lower tiers also switch to a two-piece aluminum handlebar and stem, which adds weight but significantly reduces the cost and complexity of customizing the bike's fit. All models benefit from a standard threaded bottom bracket, simplifying long-term maintenance.

05 / Reviews

From the press.

41 reviews from the cycling press.

Critics consistently praise the Tarmac SL8 for achieving a rare balance of climbing agility and sustained flat-road speed. On steep gradients, the remarkably low weight and rigid bottom bracket make the bike highly responsive. One tester noted that the frame "dances uphill with urgency, almost begging you to attack the next gradient" (YouTube). Descending and cornering draw similar acclaim, with the stiff front end translating rider input into precise, predictable steering. Through fast corners, the handling provides a "telepathic immediacy" (Cycling News) that allows riders to hold tight lines over varying road surfaces.

While the frame itself is lauded for muting road chatter better than previous iterations, reviewers frequently point to the stock component choices as a limiting factor for ride quality. The factory-spec 26mm tires are widely criticized for feeling harsh and lifeless. Swapping to wider, more supple rubber is a near-universal recommendation among testers, with one noting that moving to a 28mm tire "instantly transformed" (Road.cc) the overall ride. Additionally, while the integrated carbon cockpit on higher-end models aids aerodynamics, some riders found the thin, bladed tops uncomfortable during long stints in the saddle. Despite these spec-related gripes, the underlying chassis is widely considered a benchmark in the modern race category.

Tarmac SL8 Honest Review – Is It Worth the Hype?
YouTube

Tarmac SL8 Honest Review – Is It Worth the Hype?

Bespoke EnduranceOct 16, 2025
Review: Specialized Tarmac SL8 Expert
Road.cc

Review: Specialized Tarmac SL8 Expert

Stu KertonAug 13, 2025
Specialized Tarmac SL8 Pro 6 Month Review - I HATE That I ...
YouTube

Specialized Tarmac SL8 Pro 6 Month Review - I HATE That I ...

David Arthur - Just Ride BikesAug 3, 2025
Is the Specialized Tarmac SL8 Still the Bike to Beat in 2025?
YouTube

Is the Specialized Tarmac SL8 Still the Bike to Beat in 2025?

David Arthur - Just Ride BikesMay 25, 2025
REVIEWING the Specialized S-Works Tarmac SL8
YouTube

REVIEWING the Specialized S-Works Tarmac SL8

Chris HornerMay 21, 2025
Is This the BEST Bike SPECIALIZED Has EVER Made ...
YouTube

Is This the BEST Bike SPECIALIZED Has EVER Made ...

Feb 21, 2025
Lives Up to the Hype? The Specialized Tarmac SL8
YouTube

Lives Up to the Hype? The Specialized Tarmac SL8

outdoorbrosJan 10, 2025
Specialized S-Works Tarmac SL8 review in our 2025 road ...
Granfondo

Specialized S-Works Tarmac SL8 review in our 2025 road ...

Sven WeinbrennerJan 9, 2025
Tarmac SL8 Pro Long Term Review - Change of Heart
YouTube

Tarmac SL8 Pro Long Term Review - Change of Heart

Dec 21, 2024
Tarmac SL8 Pro Review - The BEST Bike I Have EVER Ridden
YouTube

Tarmac SL8 Pro Review - The BEST Bike I Have EVER Ridden

Dec 21, 2024
Tarmac SL8 Review | What is it like to ride?
YouTube

Tarmac SL8 Review | What is it like to ride?

Dec 21, 2024
2024 Specialized Tarmac SL8 Review: Overhyped or the New ...
YouTube

2024 Specialized Tarmac SL8 Review: Overhyped or the New ...

Dec 21, 2024
December 2024 – The Cycling Meister
Thecyclingmeister

December 2024 – The Cycling Meister

Words and imagesOscar HuckleDec 15, 2024
First ride review: Specialized Tarmac SL8 Expert
Thecyclingmeister

First ride review: Specialized Tarmac SL8 Expert

Words and imagesOscar HuckleDec 15, 2024
Mont Ventoux shootout – Specialized S Works Tarmac SL8 in review
Granfondo

Mont Ventoux shootout – Specialized S Works Tarmac SL8 in review

David FeddersenDec 10, 2024
Does the Specialized Tarmac SL8 Deliver as a Do-It-All Bike?
YouTube

Does the Specialized Tarmac SL8 Deliver as a Do-It-All Bike?

Nov 21, 2024
SPECIALIZED TARMAC S-WORKS SL8, toujours la référence ? Essai vérité !
YouTube

SPECIALIZED TARMAC S-WORKS SL8, toujours la référence ? Essai vérité !

Nov 4, 2024
Specialized S-works Tarmac SL8: how does it stack up 12 ...
Cycling Weekly

Specialized S-works Tarmac SL8: how does it stack up 12 ...

By Joe Baker published 18 September 2024Sep 18, 2024
Specialized S-Works Tarmac SL8 2023 2024 road test ride review all you need to know
Cyclonline

Specialized S-Works Tarmac SL8 2023 2024 road test ride review all you need to know

LucaJun 17, 2024
2024 Specialized Tarmac SL8 Expert Sram Rival AXS road test ride review all you need to know
Cyclonline

2024 Specialized Tarmac SL8 Expert Sram Rival AXS road test ride review all you need to know

LucaJun 17, 2024
2024 Specialized Tarmac SL8 Pro Ultegra Di2  road test ride review all you need to know
Cyclonline

2024 Specialized Tarmac SL8 Pro Ultegra Di2 road test ride review all you need to know

LucaJun 17, 2024
Which Road Bike Reigns Supreme: Tarmac SL8 or SL7? 5000 Mile Test
YouTube

Which Road Bike Reigns Supreme: Tarmac SL8 or SL7? 5000 Mile Test

outdoorbrosMay 10, 2024
Specialized Tarmac SL8 vs. Enve Melee
YouTube

Specialized Tarmac SL8 vs. Enve Melee

The Bicycle StationApr 10, 2024
Specialized Tarmac SL8 Review
Naplescycleryblog

Specialized Tarmac SL8 Review

Scott PatsigaJan 11, 2024
NEW: Specialized Tarmac SL8 First Ride Review | Still The ...
YouTube

NEW: Specialized Tarmac SL8 First Ride Review | Still The ...

Dec 21, 2023
Specialized Tarmac SL8 Pro review: all-day speed
Escape Collective

Specialized Tarmac SL8 Pro review: all-day speed

Dave RomeDec 11, 2023
Specialized Tarmac SL8 vs Canyon Ultimate | Which Is Best?
YouTube

Specialized Tarmac SL8 vs Canyon Ultimate | Which Is Best?

BikeRadarNov 30, 2023
Specialized S-Works Tarmac SL8 - SRAM Red eTap AXS
Road.cc

Specialized S-Works Tarmac SL8 - SRAM Red eTap AXS

Nov 30, 2023
Specialized S-Works Tarmac SL8 Dura-Ace Di2 review - Road Bikes - Bikes
BikeRadar

Specialized S-Works Tarmac SL8 Dura-Ace Di2 review - Road Bikes - Bikes

Ashley QuinlanNov 13, 2023
Specialized Tarmac SL8 S-Works Di2 review
Cyclist Magazine

Specialized Tarmac SL8 S-Works Di2 review

bySam ChallisOct 24, 2023
Specialized Tarmac SL8 Review
YouTube

Specialized Tarmac SL8 Review

The Bicycle StationOct 9, 2023
Specialized Tarmac SL8 in-depth review - One bike that can do it all
Rouleur

Specialized Tarmac SL8 in-depth review - One bike that can do it all

Oct 3, 2023
Specialized Tarmac SL8 in-depth review - One bike that can do it all
Rouleur

Specialized Tarmac SL8 in-depth review - One bike that can do it all

Rouleur MediaOct 3, 2023
Specialized S-Works Tarmac SL8 vs. Cannondale Supersix Evo Lab71 | Which road bike is best?
YouTube

Specialized S-Works Tarmac SL8 vs. Cannondale Supersix Evo Lab71 | Which road bike is best?

road.ccSep 2, 2023
500 Miles on the NEW Tarmac SL8: Is it Venge? Aethos? SL7?
YouTube

500 Miles on the NEW Tarmac SL8: Is it Venge? Aethos? SL7?

outdoorbrosAug 25, 2023
Specialized Tarmac SL8 vs SL7 - Why I Won't Be Upgrading From My S-Works SL7!
YouTube

Specialized Tarmac SL8 vs SL7 - Why I Won't Be Upgrading From My S-Works SL7!

road.ccAug 23, 2023
Reviewed: The New Specialized Tarmac SL8
Bicycling

Reviewed: The New Specialized Tarmac SL8

Aug 6, 2023
Specialized Tarmac SL8 first ride review - no wonder the internet got excited
Cycling Weekly

Specialized Tarmac SL8 first ride review - no wonder the internet got excited

Sam GuptaAug 6, 2023
The new Specialized Tarmac SL8 2024 – Evolution or ...
Granfondo

The new Specialized Tarmac SL8 2024 – Evolution or ...

czajacAug 6, 2023
Specialized Tarmac SL8 first ride review: Clinical improvement
Velo

Specialized Tarmac SL8 first ride review: Clinical improvement

Alvin HolbrookAug 6, 2023
Specialized S-Works Tarmac SL8 review - Bikes
Cycling News

Specialized S-Works Tarmac SL8 review - Bikes

Josh CroxtonSocial Links NavigationAssociate Editor (Tech)Aug 6, 2023
06 / Compared to

Compared to.

Most-viewed comparisons.