Tarmac SL8 Pro - Ultegra Di2

10 days free insurance available
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The 'Specialized Tarmac SL8' is the world's fastest race bike, combining aerodynamics, lightweight, and exceptional ride quality. Developed over two decades, it's proven to be unbeatably fast. Dominate the road with this ultimate speed machine!

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The Specialized Tarmac SL8 Pro - Ultegra Di2 is the epitome of speed unleashed, signifying the culmination of twenty years of incessant development and race-winning pedigree. Setting the gold standard for racing bikes, the Tarmac SL8 is more than just the fastest of its kind, it's a trailblazer in the world of competitive cycling.

Victory waits for no one in the racing universe and the Tarmac SL8 is designed with this fierce ethos at its core. Unlike other competitors, this racing bike doesn't solely focus on aerodynamics or lightweight construction. Instead, it skillfully weaves these features together with impressive stiffness and compliance values to engineer a bike that's built for pure, unadulterated speed. Whether you're sprinting along a flat straight or tackling an uphill climb, the Tarmac SL8 moves as an extension of its rider, creating a harmonious union of man and machine.

Our in-house Ride Science team has run thorough race simulations using real-world data, and the results couldn't be more unequivocal. The Tarmac SL8 is simply the fastest race bike ever built. On a standard 40 km route it outpaces the competition by a staggering 16.6 seconds, while on the iconic route of Milan-San Remo, it cuts the chase by a jaw-dropping 128 seconds. Even on the revered incline of the Tourmalet climb, the Tarmac SL8 surged ahead by 20 seconds.

The Specialized Tarmac SL8 Pro - Ultegra Di2 is not just another racing bike, it's an inescapable speed revolution - setting the pace today, tomorrow, and for years to come. When you're pedalling a Tarmac SL8, victory is not a question of ""if"", but ""when"". Are your legs up for the challenge?

FrameTarmac SL8 FACT 10r Carbon, Rider First Engineeredâ„¢, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
ForkFACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
HandlebarsRoval Rapide Handlebar, carbon
StemTarmac integrated stem, 6-degree
TapeSupacaz Super Sticky Kush
SaddleBody Geometry Power Pro, hollow titanium rails
SeatPostS-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Front BrakeShimano Ultegra Di2 R8170, hydraulic disc
Seat BinderTarmac integrated wedge
Rear BrakeShimano Ultegra Di2 R8170, hydraulic disc
Shift LeversShimano Ultegra Di2 R8170, hydraulic disc
Front DerailleurShimano Ultegra Di2 R8150, braze-on
Rear DerailleurShimano Ultegra Di2 R8150, 12-speed
CassetteShimano Ultegra, 12-speed, 11-30t
CranksetShimano Ultegra R8100 with 4iiii power meter
Bottom BracketShimano Threaded BSA
ChainShimano Ultegra, 12-speed
Front WheelRoval Rapide CL II, 21mm internal width carbon rim tubeless ready, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Revolution spokes, 51mm depth
Rear WheelRoval Rapide CL II, 21mm internal width carbon rim tubeless ready, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Revolution spokes, 60mm depth
Front TireS-Works Turbo, 2BR, 700x26mm
Rear TireS-Works Turbo, 2BR, 700x26mm
Inner TubesTurbo Ultralight, 60mm Front, 80mm Rear, Presta valve
Weight7.16 kg (15 lb, 12.6 oz)
Weight Size56cm

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Size 44 49 52 54 56 58 61
BB Drop 74 74 74 72 72 72 72
BB Height 266 266 266 268 268 268 268
Bike Standover Height 723 735 746 768 786 808 834
Chainstay Length 410 410 410 410 410 410 410
Fork Length, Full 370 370 370 370 370 370 370
Fork Rake/Offset 47 47 47 44 44 44 44
Frame Reach 366 375 380 384 395 402 408
Frame Stack 501 514 527 544 565 591 612
Front Center 572 574 577 579 592 606 613
Head Tube Angle 70.5 71.75 72.5 73 73.5 73.5 74
Head Tube Length 99 109 120 137 157 184 204
Reach to Stem 363 372 377 381 393 400 406
Seat Tube Angle 75.5 75.5 74 74 73.5 73.5 73
Seat Tube Length 433 445 456 473 494 515 545
Stack to Stem 509 522 535 552 573 599 620
Top Tube Length, Horizontal 496 509 531 541 563 577 595
Trail 71 63 58 58 55 55 52
Wheelbase 970 973 975 978 991 1006 1013

Lifetime warranty* to the original owner against structural defects in material or workmanship on ALL models of Specialized-branded frames and forks

  • Includes seatstays and chainstays on full-suspension bikes
  • Does not include suspension forks and suspension parts
  • Does not include paint and graphics (these are covered below)

* Register your bike, frameset, or Roval wheels within the first 90 days of purchase for a lifetime warranty to the original owner.

Read the full warranty here

When you purchase a bike from Specialized Concept Stores, you'll receive a complimentary tune-up service at your nearest store within 6 weeks of bike delivery.

This free service is designed to ensure that the bike you've chosen is operating optimally and to make any necessary adjustments, such as cable stretching, common with new bikes.

However, if you encounter any issues with your bike at any point, we strongly advise you to cease riding and promptly book your bike in for its complimentary service to ensure your safety and riding pleasure.

When you receive your bike, you'll be pleasantly surprised at how effortless it is to get it road-ready. We've designed the assembly process to be as straightforward as possible, so you can start enjoying your new ride without delays.

All you need to do is install the handlebars, pedals, and wheels. It's a quick and hassle-free process that requires no advanced technical skills. Our user-friendly instructions and included tools will guide you through each step, ensuring a smooth and secure assembly.

Whether you're an experienced cyclist or new to bike assembly, you can trust that the process will be a breeze. Within no time, your bike will be fully assembled, and you'll be ready to hit the road, trail, or bike path with confidence.

We offer 10 days free cover with all new bikes purchased, provided by our insurance partner VeloLife. You will be covered for the first 10 days of ownership against theft and accidental damage, so you can purchase with confidence.

Give yourself the comfort of no obligation free insurance, make sure you have peace of mind from the moment you leave the store. If anything happens to the bike in the first 10 days of ownership, know you are covered!

Cycle to Work Scheme: Affordable Riding for UK Employees

Unlock a cost-effective way to own the bike of your dreams through the Cycle to Work Scheme. This initiative, available to employees in the UK, lets you enjoy the benefits of cycling while saving on your bike purchase.

With the Cycle to Work Scheme, you can use your pre-tax salary to acquire a brand-new bicycle and essential cycling accessories. This means significant savings for you, as your salary sacrifice reduces both your income tax and National Insurance contributions.

The process is seamless: Choose the bike that suits your needs and budget from our extensive range. Your employer will then set up a salary sacrifice arrangement, spreading the cost of your bike over a specified period, typically 12 to 18 months.

Once the salary sacrifice period ends, you have the option to own the bike outright for a nominal fee, ensuring you get to keep and enjoy your trusted two-wheeled companion for years to come.

Experience the freedom of cycling, save money, and reduce your carbon footprint with the Cycle to Work Scheme. Join countless UK employees who have already embraced this eco-friendly and wallet-friendly way of commuting.