If you’ve been researching Specialized Tarmac bikes, you’ve likely come across both the Tarmac SL7 and the S-Works Tarmac SL7. They look nearly identical at first glance — same geometry, same sleek aero lines — but there’s a reason one carries the prestigious S-Works badge. So, what is the difference between Tarmac SL7 and S-Works? Let’s break it down clearly and simply.
The Short Answer
The Tarmac SL7 and S-Works Tarmac SL7 share the same frame design and race-focused geometry. The key difference is in the carbon layup and component spec. The S-Works uses FACT 12r carbon fiber—the lightest and stiffest material Specialized offers—while the standard SL7 uses FACT 10r or 11r, which is slightly heavier but still incredibly high-performance. The S-Works also comes with top-tier parts and finishes that justify its elite status.
Frame Material: The Biggest Difference
This is where the two bikes truly separate. The S-Works Tarmac SL7 is built from FACT 12r carbon, the same material used by WorldTour pros. It’s the lightest frame Specialized produces, designed for maximum stiffness and power transfer while keeping weight to an absolute minimum.
The standard Tarmac SL7 uses FACT 10r or 11r carbon, which is slightly heavier and more cost-efficient to produce. The difference in ride feel is subtle for most riders, but for professionals chasing every possible watt, the 12r makes a noticeable impact.
Component Levels and Performance
Beyond the frame, the S-Works models are equipped with the most advanced components available — think SRAM Red AXS or Shimano Dura-Ace Di2, paired with Roval Rapide CLX carbon wheels and a fully integrated carbon cockpit.
The Tarmac SL7 Expert or Pro variants typically use mid-to-high-end groupsets like SRAM Force AXS or Shimano Ultegra Di2 with slightly heavier wheelsets. While the performance difference is small, the S-Works setup shaves grams and offers the smoothest shifting and stiffest response possible.
Geometry and Fit
Interestingly, both bikes share the exact same Rider-First Engineered™ geometry. That means regardless of whether you ride a size 49 or 61, the bike delivers identical handling characteristics and stiffness balance. So in terms of fit and ride position, they’re identical — the difference is entirely in feel, material, and component refinement.
Weight Comparison
- S-Works Tarmac SL7: Approximately 800g (frame only)
- Tarmac SL7 (FACT 10r/11r): Approximately 950–1000g (frame only)
The S-Works saves around 150–200 grams thanks to its higher-grade carbon and lighter components. While that might not sound like much, for serious racers, it can make a difference on steep climbs or sprint finishes.
Visual and Branding Details
The S-Works Tarmac SL7 features more premium finishes, including a hand-polished frame, unique colorways, and “S-Works” badging on the downtube instead of “Specialized.” It’s a visual cue that immediately distinguishes it as the brand’s top-tier performance model.
Who Should Choose Which?
- Choose the S-Works Tarmac SL7 if you want the lightest, fastest, and most advanced version possible — the same bike used by WorldTour pros.
- Choose the Tarmac SL7 Expert/Pro if you want near-identical performance and handling at a more practical level, with slightly heavier carbon and mid-range components.
Final Verdict
So, what is the difference between Tarmac SL7 and S-Works? It all comes down to materials and refinement. Both bikes share identical geometry and world-class engineering, but the S-Works pushes performance to its absolute limit with lighter carbon, premium components, and exclusive finishes. In short: both are race-ready machines — the S-Works is simply the ultimate version of an already exceptional bike.
FAQs
1. Are the Tarmac SL7 and S-Works Tarmac SL7 the same frame shape?
Yes, they share the same aerodynamic frame design and geometry. The only difference is in the carbon grade and finish quality.
2. Can you upgrade a regular Tarmac SL7 to S-Works performance?
You can upgrade components like the wheels and groupset, but the frame material will always be slightly heavier than the S-Works version.
3. Do professional riders use the S-Works Tarmac SL7?
Yes. Teams like UAE Team Emirates and BORA-hansgrohe use the S-Works Tarmac SL7 in major races like the Tour de France.
