Description
Specialized Tarmac SL8 Pro Force AXS Road Bike 2026
The Tarmac SL8 Road Bike combines aerodynamics, low weight, and ride quality once thought impossible. After eight generations and over two decades of development, it is more than the fastest Tarmac ever; it is the world’s fastest race bike.
Aerodynamics or lightweight alone do not win races; speed does. Achieving it demands a balance of aerodynamics, stiffness, compliance, and low weight. Race simulations using real-world data confirm the Tarmac SL8 is the fastest race bike on the courses that count, 16.6 seconds faster over 40km, 128 seconds quicker over Milan San Remo, and 20 seconds faster up the Tourmalet.
The Tarmac SL8 Pro comes with SRAM’s Force AXS groupset and integrated power meter, offering lower weight, powerful braking, and precise shifting.
Tarmac Aero in Every Detail
Aerodynamics are focused where they matter most, at the leading edge. This makes the Tarmac SL8 the most aerodynamic road bike yet, faster even than the Venge. The new Speed Sniffer nose cone sharpens the head tube for lower drag, while a redesigned seat post, enabled by UCI rules, ensures cleaner airflow around the legs.
Specialized Minimum Weight, Maximum Aero
Drawing on lessons from the Aethos, the Tarmac SL8 hits the UCI minimum weight with a full aero setup. The S-Works frame weighs just 685 grams, 15 percent lighter than the SL7 and lighter than any other World Tour bike. Its efficient design reduces the need for extra stiffness layers.
Tarmac Ride Quality
With 33 percent better stiffness-to-weight than the SL7, the Tarmac SL8 takes handling, responsiveness, and race-proven geometry to the next level. It is stiffer at the pedals, sharper at the bars, yet more compliant in the saddle. Rider-First Engineering ensures consistent ride quality across all sizes, with 6 percent more compliance for smoother performance on rough roads. Geometry and 32mm tyre clearance remain identical to the SL7 for versatility.
Rider differences go beyond gender. Designing male and female-specific bikes is outdated. The Tarmac SL8 delivers top-level performance for every cyclist.
Specialized Race Ready Specification
The Tarmac SL8 Pro features a complete SRAM Force AXS groupset with power meter, Roval Rapide CL III tubeless-ready wheelset, and Roval Rapide Cockpit, ready to race straight from the box.
Technical Specification
| Frame | Tarmac SL8 FACT 10r Carbon, Rider First Engineered, Win Tunnel Engineered, Clean Routing, threaded BB, 12x142 mm thru axle, flat mount disc |
| Fork | FACT 10r Carbon, 12x100 mm thru axle, flat mount disc |
| Front brake | New SRAM Force AXS E1, hydraulic disc, 160 mm rotor |
| Rear brake | New SRAM Force AXS E1, hydraulic disc, 160 mm rotor |
| Shift levers | New SRAM Force AXS E1 HRD |
| Rear derailleur | New SRAM Force AXS E1 |
| Front derailleur | New SRAM Force AXS E1 |
| Crankset | New SRAM Force E1 Power Meter, 48/35t |
| Cassette | New SRAM Force XG-1270, 12 speed, 10-33t |
| Chain | New SRAM Force E1 |
| Bottom bracket | SRAM DUB BSA |
| Front wheel | Roval Rapide CL III, tubeless, 21 mm internal width carbon rim, 51 mm depth, Win Tunnel Engineered, DT350 hub, 18h, DT Swiss Competition Race Straight Pull Spokes |
| Rear wheel | Roval Rapide CL III, tubeless, 21 mm internal width carbon rim, 48.5 mm depth, Win Tunnel Engineered, DT350 hub, 24h, DT Swiss Competition Race Straight Pull Spokes |
| Front tyre | S-Works Turbo TLR Race Tyre, 700x28c |
| Rear tyre | S-Works Turbo TLR Race Tyre, 700x28c |
| Inner tubes | Standard 80 mm PV |
| Saddle | Body Geometry Power Pro Mirror, Hollow Ti Rails |
| Seatpost | S-Works Tarmac SL8 Carbon, FACT Carbon, 15 mm offset |
| Handlebars | Roval Rapide Cockpit, integrated bar/stem |
| Stem | Included in handlebar |
| Tape | Supacaz Super Sticky Kush |
| Seat binder | Tarmac integrated wedge |
| Headset | Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use |
| Claimed Weight | 7.25 kg (15 lb 15.7 oz) |
| Weight size | 56 |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Size Guide
Specialized Tarmac SL8 Pro Force AXS Road Bike 2026 Sizing
Delivery & Returns
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Why buy your bike from Sigma Sports?
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