0
Your Profile
Your Basket 0
Your Offers 0
Continue Shopping
Checkout
Trustpilot
To improve your shopping experience today and in the future, this site uses cookies.
Read our full Privacy Policy & Cookie information here
I Accept Cookies
The Specialized Tarmac SL8 Expert Ultegra Di2 blends aero speed, lightweight FACT 10r carbon, and race-ready electronic shifting—ideal for serious road cyclists.
The Specialized Tarmac SL8 Expert Ultegra Di2 blends aero speed, lightweight FACT 10r carbon, and race-ready electronic shifting—ideal for serious road cyclists.
Specialized

Specialized Tarmac SL8 Expert Ultegra Di2 Carbon Road Bike 2025 in Gloss Deep Lake Metallic/Green Pearl

£4,749.00 £6,000.00 21% off
Size Guide
Earn
in Customer Rewards when you buy this item today
Sign Up
Sign In
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.

Returning an item

Online or in-store purchases can be returned to any of our 12 stores free of charge or can be returned by post or courier at your cost after completing the online returns form below. If you are returning an item due to a fault, we will refund your postage costs.

Bikes & Bulky items

If you wish to return a bike or bulky item to us, please keep the box it arrived in and let us know by contacting our support team via our online webchat, email or by phone (020 45063856) and we will help arrange a collection.

Non Bike - Customer Returns Form

If you wish to return or exchange an item, please fill out the form below following the steps inside. Returns can be processed quicker if all required information is provided.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Specialized Tarmac SL8 Expert Ultegra Di2 Carbon Road Bike 2025 in Gloss Deep Lake Metallic/Green Pearl

Season:2025Sale

Brand:Specialized

Code:42762095441178

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?

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.

Key Features & Benefits

  • Aero in everything:Utilizing new UCI rules, the Tarmac SL8 has the narrowest, most aero seat post Specialized have ever made ensuring fast-moving, dirty air around the legs can flow back more cleanly.
  • Massive gains in stiffness-to-weight: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.
  • Shimano Ultegra Di2 Groupset:Exceptional performance electronic shifting with a wide range cassette.

Full Specification

  • Frame:Tarmac SL8 FACT 10r Carbon, Rider First EngineeredTM, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • Fork:Tarmac SL8 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
  • Number of Gears:24
  • Gear Shifters:Shimano Ultegra R8170, hydraulic disc
  • Chainset:Shimano Ultegra R81000
  • Chainrings:52/36T
  • Rear Cassette:Shimano Ultegra, 12-speed, 11-30t
  • Chain:Shimano Ultegra, 12-speed
  • Front Derailleur:Shimano Ultegra R8150, braze-on
  • Rear Derailleur:Shimano Ultegra Di2 R8150, 12-speed
  • Bottom Bracket:Shimano Threaded BSA BB
  • Pedals:Not supplied:Shop pedals here
  • Front Wheel:Roval C38, 21mm internal width carbon rim
  • Rear Wheel:Roval C38, 21mm internal width carbon rim
  • Front Tyre:S-Works Turbo, folding bead, 700x26mm
  • Rear Tyre:S-Works Turbo, folding bead, 700x26mm
  • Brakes:Shimano Ultegra Di2 R8170, hydraulic disc
  • Handlebars:Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach
  • Handlebar Tape:Supacaz Super Sticky Kush
  • Headset:No info available
  • Stem:Specialized Tarmac integrated stem, 6-degree
  • Saddle:Body Geometry Power Expert
  • Seatpost:S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
  • Accessories:Shimano Di2 Charger
  • Weight:56cm - 7.20kg (15 lb, 14 oz)
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Sizing Guide For Specialized Tarmac

Frame Size (cm)Height (cm)Height (Inches)
44142 - 1554'8" - 5'1"
49155 - 1635'1"- 5'4"
52163 - 1705'4" - 5'7"
54170 - 1755'7" - 5'9"
56175 - 1805'9" - 5'11"
58180 - 1885'11" - 6'2"
61188 - 1966'2" - 6'5"

Geometry Information For Specialized Tarmac SL8

44495254565861
Crank Length165mm165mm170mm172.5mm172.5mm175mm175mm
Frame Stack501mm514mm527mm544mm565mm591mm612mm
Frame Reach366mm375mm380mm384mm395mm402mm408mm
Head Tube Length99mm109mm120mm137mm157mm184mm204mm
Head Tube Angle70.5°71.75°72.5°73°73.5°73.5°74°
BB Height266mm266mm266mm268mm268mm268mm268mm
BB Drop74mm74mm74mm72mm72mm72mm72mm
Trail71mm63mm58mm58mm55mm55mm52mm
Fork Length, Full370mm370mm370mm370mm370mm370mm370mm
Fork Rake/Offset47mm47mm47mm44mm44mm44mm44mm
Front Center572mm574mm577mm579mm592mm606mm613mm
Chainstay Length410mm410mm410mm410mm410mm410mm410mm
Wheelbase970mm973mm975mm978mm991mm1006mm1013mm
Top Tube Length, Horizontal496mm509mm531mm541mm563mm577mm595mm
Bike Standover Height723mm735mm746mm768mm786mm808mm834mm
Seat Tube Length433mm445mm456mm473mm494mm515mm545mm
Seat Tube Angle75.5°75.5°74°74°73.5°73.5°73°

Warranty Information for Specialized Bikes and Wheels

Policy TermCoverage for Registered ProductsCoverage if Not Registered

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)		Lifetime2 Years
Lifetime warranty* on Roval wheelsLifetime2 Years

Other Specialized-branded products are covered by a two-year warranty

• Paint and graphics on frames and frame set
• Specialized branded components
• Co-branded suspension (BRAIN)
• Motors & Drive systems components on e-bikes
• Equipment
• Helmets
• Shoes		2 Years2 Years

Turbo batteries have a warranty for 2 years or 300 charge cycles— whichever comes first.

2 years2 years

*Register your bike, frameset, or Roval wheels within the first 90 days of purchase for a lifetime warranty to the original owner. For Full warranty policy please visit specialized.com

Technical Information
  • Frame
    Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • Suspension Fork
    FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
  • Cockpit Handlebars
    Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach
  • Saddle
    Body Geometry Power Expert
  • Stem
    Tarmac integrated stem, 6-degree
  • Tape
    Supacaz Super Sticky Kush
  • Seatpost
    S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
  • Seat Binder
    Tarmac integrated wedge
  • Front Brake
    Shimano Ultegra Di2 R8170, hydraulic disc
  • Rear Brake
    Shimano Ultegra Di2 R8170, hydraulic disc
  • Shift Levers
    Shimano Ultegra R8170, hydraulic disc
  • Front Derailleur
    Shimano Ultegra R8150, braze-on
  • Rear Derailleur
    Shimano Ultegra Di2 R8150, 12-speed
  • Cassette
    Shimano Ultegra, 12-speed, 11-30t
  • Crankset
    Shimano Ultegra R81000
  • Chainrings
    52/36T
  • Bottom Bracket
    Shimano Threaded BSA BB
  • Chain
    Shimano Ultegra, 12-speed
  • Front Wheel
    Roval C38, 21mm internal width carbon rim
  • Rear Wheel
    Roval C38, 21mm internal width carbon rim
  • Front Tire
    S-Works Turbo, folding bead, 700x26mm
  • Rear Tire
    S-Works Turbo, folding bead, 700x26mm
  • Inner Tubes
    Turbo Ultralight, 48mm Presta valve
  • Product ID
    276209
  • Weight
    7.20kg (15 lb, 14 oz)
  • Weight Size
    56
Sizing Information
Professional Opinion
Question(s) answered about Specialized Tarmac SL8 Expert Ultegra Di2 Carbon Road Bike 2025 in Gloss Deep Lake Metallic/Green Pearl
Ask a question
Question(s) asked regarding Specialized Tarmac SL8 Expert Ultegra Di2 Carbon Road Bike 2025 in Gloss Deep Lake Metallic/Green Pearl

Ask a question

Your name
Your email address
Your phone number
Your question
Submit Question  Close
Home Road Cycling Bikes Specialized Road Bikes