Tarmac SL8 Expert Shimano Ultegra Di2
The Tarmac SL8 Expert is the fastest race bike Specialized has ever built — combining aerodynamic gains, lightweight carbon, and race-proven stiffness. Outfitted with Shimano's Ultra Di2 12-speed wireless group and Roval C38 carbon wheels, this is pure speed in a fully integrated, ready-to-race package.
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Product images may vary slightly from final specifications.
Need to Know
KEY FEATURES
PERFECT FOR
Why we like the Specialized Tarmac SL8 Expert Shimano Ultegra Di2
Aero gains where it counts
The Speed Sniffer head tube and aero seatpost make the SL8 more aero than even the Venge — this bike is engineered for speed at the front.
Race performance, real-world comfort
With 6% more compliance in the saddle and 33% better stiffness-to-weight than the SL7, the ride is both fast and forgiving.
Premium spec at the expert level
Shimano Ultegra Di2 shifting, Roval C38 wheels, and a FACT 10r carbon frame mean you’re getting pro-level performance without going full S-Works.
Specifications
Frame Material
Tarmac SL8 FACT 10r Carbon
Shifter
Shimano Ultegra Di2
Rear Derailleur
Shimano Ultegra Di2 R8150, 12-speed
Front Derailleur
Shimano Ultegra Di2 R8150, braze-on
Crankset
Shimano Ultegra R8100. 52/36t
Chain
Shimano XT CN-M8100, 12-speed
Cassette
Shimano Ultegra, 12-speed, 11-30t
Brakeset
Shimano Ultegra Hydraulic Brake
Rotors
160 mm front & rear
Bottom Bracket
Shimano Threaded BSA BB
Cockpit
Headset
Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use
Handlebar
Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach
Stem
Tarmac integrated stem, 6-degree
Saddle
Body Geometry Power Expert
Seatpost
S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Wheels
Wheelset
Roval C38, 21mm internal width carbon rim, tubeless-ready
Front Axle
12x100 mm thru-axle
Rear Axle
12x142 mm thru-axle
Hubs
Roval sealed-bearing hubs
Tires
S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm
Tire Clearance
Up to 32mm
Size Guide
Geometry
| 44cm | 49cm | 52cm | 54cm | 56cm | 58cm | 61cm |
|---|
All measurements in degrees or mm
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FAQ
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Bici's return policy includes a 30-day window for online return requests, a 15-day return period after approval, and eligibility criteria such as unused items in original packaging.
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Visit our Return Center and follow the simple steps to process your return.
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Fast shipping
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