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Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. It is the world’s fastest race bike.
Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. It is the world’s fastest race bike.
Specialized

Specialized Tarmac SL8 Pro Shimano Ultegra Di2 Road Bike in Gloss Dolomite Metallic

£7,249.00
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30 Day Returns

We offer a 30 day returns policy. We will only refund return postage costs on damaged/faulty goods (a postage receipt will be needed). Refunds will only be returned to the original payment method – this may take up to 10 days to appear depending on how you paid.

WHAT WE CAN DO:

  • We offer a 30 day returns policy.
  • We will only refund return postage costs on damaged/faulty goods (a postage receipt will be needed)
  • Refunds will only be returned to the original payment method – this may take up to 10 days to appear depending on how you paid.

WHAT WE CANNOT DO

  • We cannot refund your return postage if you have changed your mind or ordered incorrectly.
  • We are unable to accept returns where the goods or packaging is lost, damaged or not in the condition you received it in.Please note that bikes must be returned in a securely-packaged bike box.
  • We are unable to offer a return on items that have been bought in the sale, gift voucher's or store credits can be issued.
  • We cannot accept returns without a completed returns form – items received without the correct paper work will delay the returns process.
  • We are unable to offer a refund without proof of purchase.

WHAT YOU NEED TO DO

  • Always hold on to your packaging (including bike boxes) until you are completely satisfied with your purchase – we cannot accept returns without this.Please note that bikes must be returned in a securely-packaged bike box.
  • Try and keep packaging intact as damaged packaging may invalidate your right to a refund.
  • When returning your order under warranty please make sure any items of clothing, footwear or bikes have been suitably cleaned – failure to do this may delay or invalidate your warranty claim.
  • It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

Specialized Tarmac SL8 Pro Shimano Ultegra Di2 Road Bike in Gloss Dolomite Metallic

Season:2026

Brand:Specialized

Code:42215765460161

Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. It is the world's fastest race bike, made even faster with the aero paradigm-shifting performance of the all-new Roval Rapide CL III wheels.

Aerodynamics or lightweight alone do not win races; speed is what matters. Delivering that speed requires creating an uncompromising combination of aerodynamics, lightweight, stiffness, and compliance. Through race simulations using real-world data, the Ride Science team knows the Tarmac SL8 is the fastest race bike ever made on the routes that matter: 16.6 seconds faster over 40km, 128 seconds faster over Milan San Remo, and 20 seconds faster over the legendary Tourmalet climb.

The Tarmac SL8 Pro delivers exceptional performance with a full Shimano Ultegra 8100 series Di2 groupset with power meter, Roval Rapide CL III tubeless-ready wheelset, and a Roval Rapide cockpit. You are ready to race out of the box.

Features:

  • AERO IN EVERYTHING: Aerodynamics are placed where they matter—the leading edge—not just where they look good. In the process, this is the most aerodynamic road bike ever created, more aero than the Venge. Clean air is optimized for maximum advantage with the Tarmac’s new nose cone—the Speed Sniffer. By moving the steer tube back, the leading edge of the head tube can be much sharper, delivering a much lower drag shape. Utilizing new UCI rules, the Tarmac SL8 has the narrowest, most aero seat post ever made, ensuring fast-moving, dirty air around the legs can flow back more cleanly.
  • MINIMUM WEIGHT, MAXIMUM AERO: Tarmac SL8 took learnings from Aethos to be easily built at the UCI minimum with a full aero setup. The team delivered a 685 gram frame, 15% lighter than the Tarmac SL7 and lighter than anything else on the World Tour. Lessons from Aethos were applied with the ability to make lightweight a top priority in the down tube, seat tube, and rear of the bike. The frame’s shape carries load so efficiently that extra carbon stiffness layers become redundant.
  • GOES LIKE HELL, RIDES LIKE HEAVEN: With massive gains in stiffness-to-weight—an improvement of 33% over the SL7—the Tarmac SL8 takes legendary handling, aggressive responsiveness, and World Championship proven geometry to the next level. The bike is stiffer at the pedals, more precise at the bars, and combines it with a compliant ride in the saddle that sets a new benchmark for race bike comfort. Thanks to Rider-First Engineering, every rider, regardless of size, gets the same unprecedented ride quality and handling. In the saddle, the Tarmac SL8 delivers 6% more compliance, floating over rough road with a supple feel unique in the high-strung world of race bikes. Tarmac’s proven geometry and 32mm tire clearance are identical to the SL7, ensuring easy adaptation and the versatility to run higher volume tires when needed.
  • BEYOND GENDER: There can be more difference between two male cyclists than between a male and female. Gender alone does not provide nearly enough data to specialize, and that means creating male or female bikes is arbitrary and outdated. Every rider can get the next level advantage of Tarmac SL8.
  • 'Apple Find My' technology is now integrated in all SW & Pro 4iiii power meters. Riders can now enjoy the peace of mind that comes with knowing the exact location of their bikes.
Technical Information
  • Frame
    Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • Fork
    FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
  • Front brake
    Shimano Ultegra BR-R8170 hydraulic disc
  • Rear brake
    Shimano Ultegra BR-R8170 hydraulic disc
  • Shift levers
    Shimano Ultegra Di2 R8170, hydraulic disc
  • Front derailleur
    Shimano Ultegra Di2 R8150, braze-on
  • Rear derailleur
    Shimano Ultegra Di2 R8150, 12-speed
  • Cassette
    Shimano Ultegra, 12-speed, 11-30t
  • Chain
    Shimano XT M8100, 12-speed w/ quick link
  • Crankset
    Shimano Ultegra R81000 with 4iiii Precision 3+ Power Meter, 52/36t
  • Bottom bracket
    Shimano Threaded BSA BB
  • Front tire
    S-Works Turbo TLR Race Tire, 700x28c
  • Front wheel
    Roval Rapide CL III, Tubeless, 21mm internal width carbon rim, 51mm depth, Win Tunnel Engineered, DT350 hub, 18h, DT Swiss Competition Race Straight Pull Spokes
  • Rear tire
    S-Works Turbo TLR Race Tire, 700x28c
  • Rear wheel
    Roval Rapide CL III, Tubeless, 21mm internal width carbon rim, 48.5mm depth, Win Tunnel Engineered, DT350 hub, 24h, DT Swiss Competition Race Straight Pull Spokes
  • Inner tubes
    Standard 700 x 20-28 80mm PV
  • Handlebars
    Roval Rapide Cockpit, Integrated Bar/Stem
  • Tape
    Supacaz Super Sticky Kush
  • Saddle
    Power Pro Mirror, Hollow Ti rails
  • Seatpost
    S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
  • Seat binder
    Tarmac integrated wedge
  • Headset
    Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use
  • Product id
    221576
  • Weight
    7.25 kg (15 lb, 15.7 oz)
  • Weight size
    56
Sizing Information
MTB Sizes (Note on 'S' Sizing - size UP for stability, size DOWN for a maneuverability)
InchesCMStandard Bike Size'S' Size
4'10"-5'1"148-155XSS1
5'2"-5'5"158-165SS2
5'5"-5'10"165-178MS3
5'10"-6'1"178-185LS4
6'1"-6'4"185-193XLS5
6'3"-6"4"191-200XXLS6

Road Bike Sizes
InchesCMSize
5'1"-5'4"155-16349
5'4"-5'7"163-17052
5'7"-5'10"170-17554
5'9"-6'0"175-18356
5'11"-6'2"180-18858
6'2"-6'5"188-19661

Hybrid Bike Sizes
InchesCMSize
4'8"-4'11"142-150XXS
4'11"-5'2"150-158XS
5'1"-5'5"155-165S
5'5"-5'9"165-175M
5'9"-6'0"175-183L
6'0"-6'4"183-193XL
6'4"-6'6"193-198XXL

Kids Bike Sizes
InchesCMBikes
29"-32"73-81Hotwalk
31"-37"79-94Riprock 12
37"-42"94-107Riprock 16
41"-52"107-133Riprock 20
47"-56"119-142Riprock 24
37"-48"95-121Jett 16
40"-45"102-139Jett 20
44"-62"112-156Jett 24
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