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2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike in Gloss Silver Open Lightbox

2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike in Gloss Silver

From:  £8,250.00
Nothing is faster than the 2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike in Gloss Silver thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. After eight generation...Learn more
Size: 52
Product Code: 94925-1352
In stock online, dispatches from 6 days (order before 2pm)
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Map Marker icon 106-108 The Hornet, Chichester, England, United Kingdom
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Map Marker icon 150 Commercial Road, Totton, Southampton, England, United Kingdom
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Monday9am - 5.30pm
Tuesday9am - 5.30pm
Wednesday9am - 5.30pm
Thursday9am - 5.30pm
Friday9am - 5.30pm
Saturday9am - 5.30pm
Sunday10am - 4.00pm
Bank Holidays10am - 4.00pm
£8,250.00 + Add to cart

Nothing is faster than the 2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike in Gloss Silver 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?


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 our 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.

Key Features:

  • AERO IN EVERYTHING: We’re putting aero where it matters - the leading edge - not just where it looks good. In the process we’ve created our most aerodynamic road bike ever. Yes, it’s 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 tube that determines head tube width - 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 we’ve ever made ensuring fast moving, dirty air around the legs can flow back more cleanly. Doesn’t victory smell sweet?
  • MINIMUM WEIGHT, MAXIMUM AERO: Tarmac SL8 took learnings from Aethos to be easily built at the UCI minimum with a full aero set up. The team delivered a mind bending, scale tickling 685 gram frame - 15% lighter than the Tarmac SL7 and lighter than anything on else on the World Tour*. With the ability to make lightweight a top priority in the down tube, seat tube, and rear of the bike lessons from Aethos were applied. The frame’s shape carries load so efficiently that extra carbon stiffness layers become redundant. *Unless of course you count the time Kasper Asgreen raced our 585 gram Aethos frame during a Tour stage.
  • 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 our 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 doesn’t 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. It’s time to go Beyond Gender.
  • The Tarmac SL8 Pro delivers exceptional performance with a full Shimano Ultegra 8100 series Di2 groupset with power meter, Roval Rapide CL II tubeless-ready wheelset, and a Roval Rapide Handlebar with an SL7 stem. You’re ready to race out of the box.

All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 will incur a £20 delivery fee.

Free Delivery On Orders Over £50.00 - When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.

Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.

At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.

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2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike in Gloss Silver

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 Di2 R8170, hydraulic disc

Rear Brake: Shimano Ultegra Di2 R8170, hydraulic disc

Chainrings: 52/36T

Cassette: Shimano Ultegra, 12-speed, 11-30t

Bottom Bracket: Shimano Threaded BSA

Crankset: Shimano Ultegra R8100 with 4iiii power meter

Rear Derailleur: Shimano Ultegra Di2 R8150, 12-speed

Front Derailleur: Shimano Ultegra Di2 R8150, braze-on

Shift Levers: Shimano Ultegra Di2 R8170, hydraulic disc

Chain: Shimano Ultegra, 12-speed

Inner Tubes: Turbo Ultralight, 60mm Front, 80mm Rear, Presta valve

Front Tire: S-Works Turbo, 2BR, 700x26mm

Rear Tire: S-Works Turbo, 2BR, 700x26mm

Front Wheel: Roval 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 Wheel: Roval Rapide CL II, 21mm internal width carbon rim tubeless ready, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Revolution spokes, 60mm depth

Saddle: Power Pro with Mirror

Stem: Roval Rapide Cockpit, Integrated Bar/Stem

SeatPost: S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset

Handlebars: Roval Rapide Cockpit, Integrated Bar/Stem

Tape: Supacaz Super Sticky Kush

Seat Binder: Tarmac integrated wedge

Headset: STEM HEADSET SPACERS KIT FOR SL7 STEM & ROVAL RAPIDE COCKPIT USE

Product ID: 274935

Weight Size: 56cm

Weight: 7.16 kg (15 lb, 12.6 oz)