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Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible.
Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible.
Specialized

Specialized Tarmac SL8 Comp Shimano Road Race Bike - Gloss Red Tint Silver Dust

£3,599.00
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Estimated Delivery & Collection Dates

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We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Specialized Tarmac SL8 Comp Shimano Road Race Bike - Gloss Red Tint Silver Dust

Season:2026

Brand:Specialized

Code:42215785467795

Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. After eight generations and over two decades of development, it’s more than the fastest Tarmac ever - it’s the world’s fastest race bike. Your legs up for it?

Specifications:

  • Use: Performance Road Riding
  • Frameset: FACT 10r Frame / FACT 10r Fork
  • Fit: Performance Aero
  • Groupset: Shimano 105 Di2, 2x12 Speed
  • Wheels/ Cockpit DT Swiss R470 Tubeless ready rims, Tarmac Integrated stem/ Alloy shallow drop bars
  • Weight: 7.68 kg (16 lb, 14.9 oz) (56cm)

Aerodynamics or lightweight alone don’t 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 Specialized's 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, 20 seconds faster over the legendary Tourmalet climb.

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.
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 105 Hydraulic Brake
  • Rear Brake
    Shimano 105 Hydraulic Brake
  • Shift Levers
    Shimano 105 Di2 R7170, 12-speed
  • Front Derailleur
    Shimano 105 R7170, braze-on
  • Rear Derailleur
    Shimano 105 Di2 7150
  • Cassette
    Shimano 105, 12-speed, 11-34t
  • Chain
    Shimano SLX, M7100, 12-speed
  • Crankset
    Shimano 105, 12-speed
  • Bottom Bracket
    Shimano Threaded BSA BB
  • Front Tire
    S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm
  • Front Wheel
    DT Swiss R470 rim, 20mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples.
  • Rear Tire
    S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm
  • Rear Wheel
    DT Swiss R470 rim, 20mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples.
  • Inner Tubes
    Turbo Ultralight, 48mm Presta valve
  • Stem
    Tarmac integrated stem, 6-degree
  • Handlebars
    Specialized Shallow Drop, 6061, 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
  • Seat Binder
    Tarmac integrated wedge
  • Headset
    Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use
  • Weight
    7.68 kg (16 lb, 14.9 oz)
  • Weight Size
    56
Sizing Information
44495254565861
Crank Length165165170172.5172.5175175
Handlebar Width360380400420420440440
Stem length708090100100110110
Saddle WIdth155155155143143143143
Seat Post Length300300300380380380380
Frame Stack501514527544565591612
Frame Reach366375380384395402408
Stack to Stem509522535552573599620
Reach to Stem363372377381393400406
Head Tube Length99109120137157184204
Head Tube Angle70.571.7572.57373.573.574
BB Height266266266268268268268
BB Drop74747472727272
Trail71635858555552
Fork Length, Full370370370370370370370
Fork Rake/Offset47474744444444
Front Center572574577579592606613
Chainstay Length410410410410410410410
Wheelbase97097397597899110061013
Top Tube Length, Horizontal496509531541563577595
Bike Standover Height723735746768786808834
Seat Tube Length433445456473494515545
Seat Tube Angle75.575.5747473.573.573
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