2026 Specialized Tarmac SL8 Comp – Shimano 105 Di2
Nothing is faster than the Tarmac SL8. After eight generations and more than
two decades of development, the Tarmac SL8 is not just the fastest Tarmac ever—it’s the
fastest race bike in the world.
Speed is not about aerodynamics or lightweight alone. It’s about the perfect balance of
aero efficiency, ultra-low weight, stiffness, and compliance.
Through real-world race simulations, Specialized’s Ride Science team proved that the Tarmac SL8
is significantly faster on the routes that matter most.
Why the Tarmac SL8 Is the Fastest
- 16.6 seconds faster over 40 km compared to previous models
- 128 seconds faster over Milan–San Remo
- 20 seconds faster over the legendary Tourmalet climb
Aero in Everything
The Tarmac SL8 puts aerodynamics where it truly matters—the leading edge. The new
Speed Sniffer nose cone sharpens the head tube profile by repositioning the steer tube,
reducing drag even more than the Venge. A newly designed ultra-narrow seatpost ensures clean airflow
around the legs for maximum efficiency.
Minimum Weight, Maximum Aero
With lessons learned from the Aethos, the Tarmac SL8 frame weighs just
685 grams—15% lighter than the SL7—while maintaining full aero performance.
Its carbon layup carries load so efficiently that excess material is eliminated without
compromising stiffness or ride quality.
Goes Like Hell, Rides Like Heaven
With a 33% improvement in stiffness-to-weight over the SL7 and
6% more compliance, the Tarmac SL8 delivers explosive acceleration, razor-sharp handling,
and a surprisingly smooth ride. Thanks to Rider-First Engineering™, every size offers identical
ride quality and performance.
Tarmac SL8 Comp Di2 Highlights
- FACT 10r carbon aero race frame
- Shimano 105 Di2 12-speed electronic drivetrain
- Hydraulic disc brakes for confident stopping
- DT Swiss R470 tubeless-ready wheelset
- Race-ready geometry with 32mm tire clearance
Frameset
| Frame |
Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, threaded BB, 12x142mm thru-axle, flat-mount disc |
| Seat Binder |
Tarmac integrated wedge |
Suspension
| Fork |
FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc |
Brakes
| Front Brake |
Shimano 105 hydraulic disc |
| Rear Brake |
Shimano 105 hydraulic disc |
Drivetrain
| Shift Levers |
Shimano 105 Di2 R7170, 12-speed |
| Front Derailleur |
Shimano 105 R7170, braze-on |
| Rear Derailleur |
Shimano 105 Di2 R7150 |
| Cassette |
Shimano 105, 12-speed, 11–34T |
| Chain |
Shimano SLX M7100, 12-speed |
| Crankset |
Shimano 105 R7100, 52/36T |
| Bottom Bracket |
Shimano Threaded BSA BB |
Wheels & Tires
| Front Wheel |
DT Swiss R470 rim, 20mm internal width, tubeless ready, 24h, Specialized sealed bearing hub, Centerlock disc |
| Rear Wheel |
DT Swiss R470 rim, 20mm internal width, tubeless ready, 24h, Specialized sealed bearing hub, Centerlock disc |
| Front Tire |
S-Works Turbo, 120 TPI, BlackBelt protection, 700x26mm |
| Rear Tire |
S-Works Turbo, 120 TPI, BlackBelt protection, 700x26mm |
| Inner Tubes |
Turbo Ultralight, 48mm Presta valve |
Cockpit
| Stem |
Tarmac integrated stem, 6-degree |
| Handlebars |
Specialized Shallow Drop, 6061 alloy, 70x125mm, 31.8mm clamp |
| Tape |
Supacaz Super Sticky Kush |
| Saddle |
Body Geometry Power Sport, steel rails |
| Seatpost |
S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset |
Product Details
| Weight |
7.68 kg (16 lb 14.9 oz) |
| Weight Size |
56 |
Specifications are subject to change without notice.
