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Specialized S-Works Tarmac Disc Dura-Ace Di2 Road Bike

  • Designed for speed in all aspects of racing, whether it's sharp climbs, windy flats or descents
  • Featuring a 500 piece frame design to create perfect ride quality for each and every frame size
  • The Tarmac SL6 frame is 20% lighter and 45 seconds faster over 40km than the previous SL5 frame
  • Equipped with full Dura-Ace 9170 Di2 & disc brakes for ultimate control when you're racing FAST




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Product Information

Specialized S-Works Tarmac Disc Dura-Ace Di2 Road Bike

Specialized's S-Works Tarmac has been designed for speed in all aspects of racing, whether it's long or sharp climbs, windy flats or technical descents, the S-Works Tarmac has got it covered. Ideal for racing anywhere, from the local crit race to grand tour stages, the Tarmac is the most complete racing bike around. Specialized started by using their 500 piece Rider-First Engineered™ frame in order to provide the perfect ride quality in all frame sizes. Designed using Specialized's new FACT 12r carbon frame to make the Tarmac faster than ever before. The SL6 frame is a whole 20% lighter than the previous SL5 model as well as a whopping 45 seconds faster over 40kms. These game-changing improvements came from a new aerodynamic design, with a new fork shape, dropped seatstays with aero tubes and a D-Shaped seatpost and seat tube to cut through the wind more efficiently. The seatpost featured in the S-Works Tarmac now has additional flex built into the upper 120mm so that clamping doesn't occur and overall compliance is improved. This Tarmac also features tyre clearance of up to 30mm, giving you a wider range of choice when it comes to race day. To finish off the S-Works Tarmac, Specialized added a complete and new Dura-Ace 9170 Di2 groupset to provide blissful and smooth shifting that's reliable. Pair this groupset with disc brakes and you've got superior control, no matter the weather conditions on race day. Finally, this Tarmac comes with impressive lightweight and aero Roval CLX 50 Disc wheels with 26mm Turbo Cotton tyres.

Full Specification



20% Reduction in Frame Weight 

Yes, you read it right. 1/5th of this bikes frame weight has been saved from the SL5 to the SL6. You may be left asking whether if it was done through rocket science? You would be absolutely correct. Specialized's advanced aerospace composite optimisation software allowed them to go about the layup of the carbon-fibre in a completely different way. Meaning the FACT 10r carbon fibre is now the perfect recipe for your next PB whether that's uphill, downhill, straight or round the bends. 


500 Piece Frame

Constructing a 500-piece jigsaw puzzle is tough enough, try constructing 500-pieces of carbon-fibre. Specialized has managed it through their Rider-First Engineered™ technology which allows them to be able to ensure the same great performance in every frame size. This has been done by tacking different carbon layups, quantities of materials, flexibility arrangements and orientations for each sized model. 


45 Seconds Faster over 40km 

And no, that doesn't mean you can take your training easy this week. But through the development of key components, Specialized has found a way to save a whopping 45 seconds over 40km. This has been down through a new D-shaped seatpost, re-engineered aero tube and seat stays as well as a new fork shape. 



Frame - S-Works Tarmac SL6, FACT 12r carbon fibre, Rider-First Engineered™, OSBB, clean routing, internally integrated seat clamp, 12x142mm thru-axle, flat-mount disc

Fork - S-Works FACT 12r carbon, 12x100mm thru-axle, flat-mount disc



Front Wheel - Roval CLX 50 Disc, carbon, tubeless-ready, Win Tunnel Engineered, 50mm depth, CeramicSpeed bearings, 21h

Rear Wheel - Roval CLX 50 Disc, carbon, tubeless-ready, Win Tunnel Engineered, 50mm depth, DT Swiss 240 internals, CeramicSpeed bearings, 24h

Front & Rear Tyres - Turbo Cotton, 320 TPI, 700x26mm

Inner Tubes - Turbo Ultralight, 60mm Presta valve



Crankset - S-Works Power Cranks, dual-sided power measurement, +/- 1.5% accuracy

Chainrings - 52/36T

Bottom Bracket - OSBB, CeramicSpeed bearings

Shift Levers - Shimano Dura-Ace Di2 Disc R9170

Front Derailleur - Shimano Dura-Ace Di2 R9150, braze-on

Rear Derailleur - Shimano Dura-Ace Di2 R9150, 11-speed

Cassette - Shimano Dura-Ace R9100, 11-speed, 11-30t

Chain - Shimano Dura-Ace, 11-speed



Front & Rear Brake - Shimano Dura-Ace R9170, hydraulic disc



Handlebars - S-Works Short & Shallow

Stem - S-Works SL, alloy, titanium bolts, 6-degree rise

Saddle - Body Geometry S-Works Power, carbon fiber rails, carbon fiber base

Seatpost - S-Works FACT carbon Tarmac seatpost, 20mm offset

Seat Binder - Tarmac SL6 clamp assembly

Tape - Roubaix S-Wrap