Specialized S-Works Tarmac SL9 - SRAM RED AXS
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Specialized S-Works Tarmac SL9 - SRAM RED AXS
Product Details
The Specialized S-Works Tarmac SL9 redefines what it means to be the fastest road bike ever made. Rather than chasing isolated metrics like weight or drag coefficients, Specialized engineered this machine around a single, measurable outcome: Time to Finish, the actual elapsed time to complete a real-world race course. Every structural decision, every aerodynamic refinement, every gram of carbon has been optimized to produce the lowest possible race time on the courses where it matters most.
The breakthrough is the Equation of Speed, a physics-based model that calculates how rider, bike, and route combine to determine finishing time. This shifts the entire design philosophy from building a "lightweight bike" or an "aero bike" to building the fastest complete system across all terrain and conditions. The FACT 12r carbon frame, weighing just 687 grams, achieves this through Flow State Design, engineers studied deformation patterns under load and used advanced computational analysis to optimize tube shapes for structural efficiency rather than simply adding material. Despite this extreme lightness, the frame matches the exact stiffness and compliance targets of its predecessor while delivering measurable aerodynamic gains.
Every surface has been reshaped for speed. The Speed Sniffer head tube uses an innovative offset steerer design that reroutes the brake cable along the right side, reducing the head tube by 4mm and frontal area by 10 percent. The dropped down tube keeps disturbed air from spilling into the frame. The Flow Fork twists outward to guide airflow more efficiently, while the Win Fin rear triangle redesign, based on real-world race observation that breakaway riders carry one bottle, not two, saves an additional 0.5 watts. The S-Works Rapide Post features the thinnest seatpost profile Specialized has ever made, optimized through Moving Leg Mannequin testing that captures the actual aerodynamic effect of a pedaling rider.
SRAM RED AXS electronic drivetrain delivers instantaneous, precise shifting, while Roval Rapide CLX III wheels provide the perfect balance of aerodynamic efficiency and low rolling resistance. This is a bike engineered to win races.
Key Features
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Frame - Specialized FACT 12r Carbon
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Drivetrain - SRAM RED AXS electronic
- Wheelset - Roval Rapide CLX III
| Frame Size | 16 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Frame Stack | 501 mm | 514 mm | 527 mm | 544 mm | 565 mm | 591 mm | 612 mm |
| Frame Reach | 366 mm | 375 mm | 380 mm | 384 mm | 395 mm | 402 mm | 408 mm |
| Head Tube Length | 100 mm | 109 mm | 120 mm | 140 mm | 157 mm | 184 mm | 204 mm |
| Head Tube Angle | 70.5° | 71.8° | 72.5° | 72.5° | 73.5° | 73.5° | 74° |
| BB Height | 266 mm | 266 mm | 266 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| BB Drop | 74 mm | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Trail | 71 mm | 63 mm | 58 mm | 58 mm | 55 mm | 55 mm | 52 mm |
| Fork Length (full) | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm |
| Fork Rake/Offset | 47 mm | 47 mm | 47 mm | 47 mm | 44 mm | 44 mm | 44 mm |
| Front Center | 567 mm | 570 mm | 572 mm | 582 mm | 587 mm | 602 mm | 609 mm |
| Chainstay Length | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 970 mm | 973 mm | 975 mm | 986 mm | 991 mm | 1005 mm | 1012 mm |
| Top Tube Length, Horizontal | 496 mm | 508 mm | 531 mm | 540 mm | 562 mm | 577 mm | 595 mm |
| Bike Standover Height | 722 mm | 734 mm | 745 mm | 767 mm | 785 mm | 807 mm | 833 mm |
| Seat Tube Length | 433 mm | 445 mm | 456 mm | 473 mm | 494 mm | 515 mm | 545 mm |
| Seat Tube Angle | 75.5° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |