Specialized S-Works Tarmac SL9 2027 (Test): What a Disappointment! All the Flaws They Won't Tell You About
Specialized S-Works Tarmac SL9 test: what a disappointment! Discover hidden flaws, the €14k price tag, and the truth about this high-end bike.
Specialized S-Works Tarmac SL9 (Test): What a Disappointment | Cyclonline
In a nutshell: Our unfiltered test of the brand-new Specialized S-Works Tarmac SL9 is here. Costing a staggering €13,999, it promises 4 extra watts but leaves a bitter taste in the mouth due to some inexplicable technical choices at this price point. Is it really worth the expense, or is it just another triumph of marketing over the amateur cyclist? Here is the truth they aren't telling you.
The new Tarmac SL9 is finally on the market. Specialized bluntly defines it as the "absolute technological benchmark." We took it out on our local roads to figure out whether those claimed 4-watt gains are reality or just the result of out-of-touch price positioning. The truth? It is undoubtedly one of the fastest bikes we have ever ridden, but the ratio of what you pay to what you get will make more than a few people turn up their noses. There is a catch as big as a house that every potential buyer needs to know before signing the check.
Editorial Note: This is not a tech spec sheet copied and pasted from official catalogs. It is an empirical test based on hundreds of kilometers. We don't care about glossy lab graphs; we care about the real-world feedback this machine transmits when you're at the limit on a descent or pushing past your threshold on a climb.
1. The Technical Verdict: What Actually Changes Between SL9 and SL8?
Let's make it clear right away to dampen easy excitement: the SL9 is not a revolutionary milestone, but rather a surgical refinement. The FACT 12r carbon frame is a genuine aerodynamic sculpture, but if you already own an SL8, the generational leap is almost imperceptible for 99% of cyclists.
Specialized has bet everything on the "finish time" metric, but out on the road at 40 km/h, those 4 watts of advantage remain a marginal margin that only a professional athlete can fully capitalize on. For an amateur, the difference is purely psychological.
2. The 3 Things We Fell in Love With (and the Ones That Make Us Furious)
THE PROS: Why It Remains an Extreme Racing Machine
Telepathic Precision: Cornering entry is the closest thing to absolute perfection currently on the market. You don't ask the bike to turn; it "reads" the trajectory before you do.
Weight at Physical Limits: An actual 6.5 kg (in stock configuration) with an aggressive aero profile is an insane achievement. Reactivity out of corners is pure adrenaline.
Clean Integration: The one-piece cockpit is an engineering masterpiece, with cable routing finally neatly organized and not punishing for mechanics during maintenance.
THE CONS: The Flaws They Don't Tell You in Shops
The 32mm Limit: This is perhaps the biggest and most disappointing flaw. In 2026/2027, direct competition (Cervélo and Canyon above all) allows clearances up to 35mm to absorb rough asphalt. Specialized stays anchored to a "racing-purist" choice that limits the bike's versatility.
An Insane Price Tag: Hitting €13,999 means crossing the threshold of technical reasonableness. You are inevitably paying for the prestige, the S-Works lettering, and the brand's elite positioning.
Zero Customization: At this astronomical figure, not being able to choose crankarm length or specific handlebar width when ordering is an unacceptable, anachronistic limit.
3. How Does It Ride on the Road? Real-World Sensations
Climbing: A true lightweight. The bottom bracket's torsional rigidity transfers every single watt to the ground without abnormal dispersion.
Descending: This is where the SL9 pulls away from the competition. High-speed stability is disarming: it instills so much confidence that it makes you brake ten meters later than any other bike tested so far.
Flat Sections: The much-hyped 4 watts are mostly a statistical figure. What you clearly perceive is exceptional inertia in holding speed, well-supported by the Roval Rapide CLX III wheels that slice right through the air.
4. The Direct Comparison: Does It Make Sense to Spend €14,000 on This?
At these spending figures, looking around is mandatory:
Cervélo S5: If your religion is pure, aggressive aerodynamics, the S5 remains a step above for aesthetic and design solutions.
Canyon Aeroad: If you are looking for nearly identical performance while saving around €4,000, the logical choice points straight to the German brand. The difference in road feel does not justify such a wide price gap.
Cyclonline's Opinion: The Final Verdict
The Specialized S-Works Tarmac SL9 is, without question, an engineering prodigy. However, the €14,000 price tag combined with clear structural limitations (like tire clearance capped at 32mm) makes it a huge disappointment for anyone looking for maximum versatility. If you are an advanced amateur who already owns an SL8, hold tight to your money. If instead you are coming from a 4-year-old frame and have an unlimited budget, you will find a surface-to-air missile—but be prepared to deal with the compromises of a true "race-ready" bike.
Do you have doubts about sizing or want to understand if this SL9 geometry matches your saddle flexibility? Write to us at info @ cyclonline.com, we answer all readers.