2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike
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The 2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike 61 Gloss Carbon / Metallic White Silver is available at the following locations.
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The 2025 Specialized Tarmac SL8 Pro Ultegra Di2 Road Bike is designed to be the ultimate ride. This is a bike that elevates speed and performance to unprecedented levels. Boasting over two decades of development, the Tarmac SL8 isn't just the fastest Tarmac available. Outperforming competitors with unrivalled balance of aero efficiency, minimal weight, stiffness, and compliance, the Tarmac SL8 has been proven to be the fastest race bike in real-world race simulations. It consistently delivers impressive speed advantages - 16.6 seconds quicker over 40km, 128 speedier seconds in Milan San Remo, and a lean 20 seconds faster ascent of the legendary Tourmalet climb.
The Tarmac SL8 has an unbeatable fusion of aerodynamics, lightweight structure, stiffness, and compliance, all integrating seamlessly to offer uncanny speed. Harnessing real-world data, Specialized's Ride Science team has verified its blistering pace, this is no ordinary bike, but a ground-breaking leader in the industry. Improved stiffness-to-weight ratio means the Tarmac SL8 marries aggressive responsiveness with comfort, thanks to a 33% improvement over the SL7. The ride in the saddle offers a remarkably compliant experience, without sacrificing the speed and precision you crave. The Tarmac SL8 is designed to fit riders, not generic gender categories. Every rider can experience the spectacular performance of this masterpiece, as we believe in evolving alongside our riders' needs.
Ready to race right out of the box, the Tarmac SL8 Pro comes packed with a full Shimano Ultegra 8100 series Di2 groupset, including a power meter, a Roval Rapide CL II tubeless-ready wheelset, and a Roval Rapide Handlebar with an SL7 stem.
This bike is perfect for
Road racers and riders who want the latest in fast, light, aerodynamic bikes. The Tarmac SL8 Pro adds to the cutting edge with Di2 gearing.
Key Features
- The Tarmac's new nose cone - the Speed Sniffer - delivers a sharp leading edge, further reducing drag and maximizing speed.
- The Tarmac SL8 frame weighs in at a feather-light 685 grams, making it the lightest bike on the world tour circuit.
- Beyond Gender unisex design
- Shimano Ultegra 8100 series Di2 groupset
| 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 |
| Crankset | Shimano Ultegra R8100 with 4iiii power meter |
| Pedals | PEDAL, TEST RIDE PEDALS PROVIDED BY SPECIALIZED |
| Chain | Shimano Ultegra, 12-speed |
| Cassette | Shimano Ultegra, 12-speed, 11-30t |
| Shift Levers | Shimano Ultegra Di2 R8170, hydraulic disc |
| Front Derailleur | Shimano Ultegra Di2 R8150, braze-on |
| Rear Derailleur | Shimano Ultegra Di2 R8150, 12-speed |
| Front Brake | Shimano Ultegra Di2 R8170, hydraulic disc |
| Rear Brake | Shimano Ultegra Di2 R8170, hydraulic disc |
| 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 |
| Front Tyre | S-Works Turbo, 2BR, 700x26mm |
| Rear Tyre | S-Works Turbo, 2BR, 700x26mm |
| Handlebars | HDLBR,ROAD,IBS E2.1,CRBN;FS |
| Saddle | SADDLE,NOVATION, KPPM155HR-BK, POWER PRO MIRROR, ETPU41 LATTICE, NYLON RECYCLE CF BASE, HOLLOW-TI RAIL,155MM;SADDLE,NOVATION, KPPM143HR-BK, POWER PRO MIRROR, ETPU41 LATTICE, NYLON RECYCLE CF BASE, HOLLOW-TI RAIL,143MM |
| Seat Post | S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset |
| Seat Binder | Tarmac integrated wedge |
| Inner Tubes | Turbo Ultralight, 60mm Front, 80mm Rear, Presta valve |
| Chain Rings | 52/36T |
| Bottom Bracket | Shimano Threaded BSA |
| Headset | STEM HEADSET SPACERS KIT FOR SL7 STEM & ROVAL RAPIDE COCKPIT USE |
| Stem | Tarmac integrated stem, 6-degree |
| Tape | Supacaz Super Sticky Kush |
| Colours | Gloss Carbon / Metallic White Silver, Gloss Liquid Silver / Satin Blue Pearl Over Black Liquid Metal |
| Sizes | 49, 52, 54, 56, 58, 61 |
| Brand | Specialized |
| Model Year | 2025 |
| Barcodes | 196625191145, 196625191275, 196625191350, 196625191404, 196625191459, 196625191671, 196625191794, 196625191961, 196625191992, 196625192173, 196625192340, 196625192470 |
| SKUs / Part Numbers | 94925-1249, 94925-1252, 94925-1254, 94925-1256, 94925-1258, 94925-1261, 94925-1349, 94925-1352, 94925-1354, 94925-1356, 94925-1358, 94925-1361 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.
Why buy from Cycles UK?
We Deliver
You can choose how to receive your new bike. You can click and collect from our stores, pick a fast courier delivery or premium hand delivery. Whichever option you choose your bike will be fully assembled and checked by one of our experienced mechanics.
Price Promise
We regularly check our prices against our competitors to ensure that you are getting a good deal. If you find an item cheaper within seven days of purchase, just let us know and ask us to match the price.
Free Insurance
Our partners at Laka provides 30 days of free insurance on all new bikes sold to UK customers. As part of our service, your new bike is automatically covered with 30 days’ FREE insurance against theft and accidental damage.
Comfort Guarantee
Opinions of contact points such as saddles, shoes and grips can vary a lot between different riders. If you buy a contact point from Cycles UK and you don’t find it comfortable, you can return it within 30 days, and we’ll swap it for something else.
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24 Month Representative Example:
Purchase Price (incl. VAT) £750
Deposit £75
Loan Amount £675
Interest/Total Charge for Credit £109.32
Total Amount Repayable £859.32
Balance Payable £784.32
By 24 Monthly Repayments of £32.68
15.9% APR Representative
Bank rate of interest 8.1% PA fixed
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