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Bicycles > Road > Framesets


The S-Works Tarmac SL8 frameset serves as the ultimate canvas from where you can create you masterpiece of a dream race bike. The S-Works SL8 frame includes frame, fork, seatpost and headset.

With the Tarmac SL8, Specialized has strategically integrated aerodynamic features in areas of maximum impact. Their meticulous approach has led to the creation of our most aerodynamically efficient road bike to date, surpassing even the previous Specialized Venge model in aerodynamic performance. The design focuses on optimizing clean airflow through the introduction of the Tarmac's innovative front-end structure: the Speed Sniffer nose cone. By repositioning the steer tube, which determines the head tube's width, they have achieved a significantly sharper leading edge for the head tube. This results in a remarkable reduction in aerodynamic drag. The Tarmac SL8 incorporates the slimmest and most aerodynamically advanced seat post ever designed, enhancing airflow around the rider's legs for improved aerodynamics.

Leveraging insights gained from the Aethos model, the Specialized engineering team accomplished an impressive feat with an astonishingly lightweight frame weighing just 685 grams. This represents a remarkable 15% weight reduction compared to the Tarmac SL7. Drawing lessons from the Aethos project, Specialized prioritized weight reduction in critical areas like the down tube, seat tube, and rear of the bike. The SL8 frame achieves exceptional load distribution efficiency, rendering extra carbon stiffness layers unnecessary.

Boasting a substantial improvement in stiffness-to-weight ratio—an impressive 33% increase over the SL7—the Tarmac SL8 not only maintains its renowned handling characteristics and aggressive responsiveness but takes these attributes to an unprecedented level. The bike demonstrates heightened rigidity at the pedals and enhanced precision at the handlebars for exceptional steering control. This performance seamlessly blends with a compliant riding experience, setting a new standard for comfort in competitive road cycling. Specialized's Rider-First Engineering approach ensures that riders of all sizes enjoy the same exceptional ride quality and handling prowess. When seated, the Tarmac SL8 offers a notable 6% increase in compliance, smoothly gliding over uneven road surfaces with unmatched suppleness, a rare trait in the dynamic realm of race-oriented bikes. While retaining the proven geometry and accommodating the 32mm tire clearance of the SL7 model, the Tarmac SL8 maintains its adaptability and the flexibility to accommodate wider and higher-volume tires.

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  • S-Works level frameset: FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc. 685g frame.
  • Fork Included: S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
  • Includes SL8 Carbon Seatpost (15mm Offset)
  • Weight: 3lb, 1.7oz (size 56cm)
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Size 44cm 49cm 52cm 54cm 56cm 58cm 59cm 61cm
Wheel Size 700 700 700 700 700 700 700 700
Stack 491mm 504mm 517mm 534mm 555mm 581mm 568mm 602mm
Reach 369mm 378mm 383mm 387mm 398mm 405mm 413mm 411mm
Head Angle 70.5° 71.75° 72.5° 73° 73.5° 73.5° 73° 73°
Seat Angle 75.5° 75.5° 74° 74° 73.5° 73.5° 73.5° 73°
Top Tube Length 496mm 509mm 531mm 541mm 563mm 577mm 587mm 595mm
Head Tube Length 93mm 102mm 113mm 131mm 151mm 178mm 163mm 198mm
Standover 723mm 735mm 746mm 768mm 786mm 808mm 809mm 834mm
Fork Trail 71mm 63mm 58mm 58mm 55mm 55mm 55mm 52mm
Fork Offset 47mm 47mm 47mm 44mm 44mm 44mm 44mm 44mm
Bottom Bracket Drop 74mm 74mm 74mm 72mm 72mm 72mm 72mm 72mm
Front Center 572mm 574mm 577mm 579mm 592mm 606mm 610mm 613mm
Wheelbase 970mm 973mm 975mm 978mm 991mm 1006mm 1009mm 1013mm
Chainstay Length 410mm 410mm 410mm 410mm 410mm 410mm 410mm 410mm
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