2025 Specialized Tarmac SL8 Expert Ultegra Di2 Road Bike

£6,000.00

Finance available with Novuna Personal Finance


Free Endura Kit Bundle

Use code TDF2 at checkout

Add Bundle to Basket

Save with Cycle to Work

At Cycles UK we accept all major cycle to work scheme vouchers online and instore. Just enter your certificate details during checkout. 

The 2025 Specialized Tarmac SL8 Expert 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.

The Tarmac SL8 Expert features a full Ultegra Di2 groupset and C38 carbon tubeless ready wheelset, the Tarmac SL8 Expert provides breakthrough performance. Combined with an SL7 stem and Specialized Expert Shallow Drop alloy handlebars, a top-notch ride experience awaits..

This bike is perfect for

Road racers and riders who want the latest in fast, light, aerodynamic bikes. The Tarmac SL8 expert 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 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 R81000
Chain Shimano Ultegra, 12-speed
Cassette Shimano Ultegra, 12-speed, 11-30t
Shift Levers Shimano Ultegra R8170, hydraulic disc
Front Derailleur Shimano Ultegra 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 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
Handlebars Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach
Saddle Body Geometry Power Expert
Seat Post S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Seat Binder Tarmac integrated wedge
Inner Tubes Turbo Ultralight, 48mm Presta valve
Chain Rings 52/36T
Bottom Bracket Shimano Threaded BSA BB
Stem Tarmac integrated stem, 6-degree
Tape Supacaz Super Sticky Kush
Colours Gloss Deep Lake Metallic / Green Pearl Over Seafoam, Gloss White / Black Metallic, Satin Champagne / Black Pearl
Sizes 44, 49, 52, 54, 56, 58, 61
Brand Specialized
Model Year 2025
Barcodes 196625179723, 196625179730, 196625179747, 196625179754, 196625179761, 196625179778, 196625179785, 196625179792, 196625179808, 196625179815, 196625179822, 196625179839, 196625179846, 196625179853, 196625191657, 196625191817, 196625191954, 196625192135, 196625192388, 196625192401, 196625192463
SKUs / Part Numbers 94925-3044, 94925-3049, 94925-3052, 94925-3054, 94925-3056, 94925-3058, 94925-3061, 94925-3144, 94925-3149, 94925-3152, 94925-3154, 94925-3156, 94925-3158, 94925-3161, 94925-3244, 94925-3249, 94925-3252, 94925-3254, 94925-3256, 94925-3258, 94925-3261

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

Why buy from Cycles UK?

You May Also Like