Specialized Tarmac SL8 Pro UDi2 2025 - Road Bike
The Specialized Tarmac SL8 Pro UDi2 takes road racing performance to the next level, featuring a FACT 10r carbon frame with aero-focused engineering. With the Shimano Ultegra Di2 groupset and integrated Roval Rapide cockpit, it's designed for maximum speed, precise handling, and unparalleled aerodynamics.
Key Features:
- Frame: FACT 10r Carbon, Rider First Engineered™ for light, stiff performance.
- Fork: FACT 10r Carbon, flat-mount disc with thru-axle for precision and control.
- Drivetrain: Shimano Ultegra Di2, 12-speed for flawless electronic shifting.
- Brakes: Shimano Ultegra R8170 hydraulic disc brakes for all-weather stopping power.
- Wheels: Roval Rapide CL II tubeless-ready wheels with S-Works Turbo 700x26mm tyres.
- Standout feature: Integrated bar and stem for optimal aerodynamics and stiffness.
- Finance: Available with 0% APR finance.
The Specialized Tarmac SL8 Pro UDi2 is designed for pure racing performance, combining aerodynamics, stiffness, and lightweight engineering in one exceptional package. Built with insights from wind tunnel testing, the Tarmac SL8 incorporates advanced aero features, such as the Speed Sniffer nose cone and a narrow, aero-optimised seat post, making it faster than its predecessors, even more so than the Venge. The frame weighs an astounding 685g, 15% lighter than the SL7, while maintaining incredible stiffness-to-weight ratios, giving you the agility and responsiveness you need for top-level racing.
The bike's Shimano Ultegra Di2 groupset ensures precise, lightning-fast electronic shifting, giving you a competitive edge on every ride. Hydraulic disc brakes deliver consistent, powerful stopping power in all weather conditions, allowing for confident descents and sharp corners.
Rider-First Engineering ensures that every size of the Tarmac SL8 Pro performs flawlessly, offering the same ride quality and handling for all riders. The Tarmac’s geometry is race-proven, and with clearance for 32mm tyres, it balances race-day stiffness with long-distance comfort, making it a versatile choice for a wide range of road conditions.
Whether you're tackling steep climbs or sprinting for the finish line, the Specialized Tarmac SL8 Pro UDi2 is built to dominate. It's not just fast; it’s the fastest. Ready to race out of the box with a 4iiii power meter and tubeless-ready Roval wheels, this bike is your ticket to the podium.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Tarmac SL8 FACT 10r Carbon, Rider First Engineeredâ„¢, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc |
| Stem | Roval Rapide Cockpit, Integrated Bar/Stem |
| Bars | Roval Rapide Cockpit, Integrated Bar/Stem |
| Front Brake | Shimano Ultegra Di2 R8170, hydraulic disc |
| Rear Brake | Shimano Ultegra Di2 R8170, hydraulic disc |
| Front Mech | Shimano Ultegra Di2 R8150, braze-on |
| Rear Mech | Shimano Ultegra Di2 R8150, 12-speed |
| Shifters | Shimano Ultegra Di2 R8170, hydraulic disc |
| Speed | 24 |
| Rims | Roval Rapide CL II, 21mm internal width carbon rim tubeless ready, Win Tunnel Engineered |
| Front Hub | DT for Roval 350 hub |
| Rear Hub | DT for Roval 350 hub |
| Spokes | T Swiss Revolution spokes |
| Front Tyre | S-Works Turbo, 2BR, 700x26mm |
| Rear Tyre | S-Works Turbo, 2BR, 700x26mm |
| Seat Post | S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset |
| Saddle | Power Pro with Mirror |
| Chainset | Shimano Ultegra R8100 with 4iiii power meter |
| Bottom Bracket | Shimano Threaded BSA |
| Chain | Shimano Ultegra, 12-speed |
| Cassette | Shimano Ultegra, 12-speed, 11-30t |
| Pedals | Resin Platform |
Specialized Tarmac SL8 2025 Size Chart
|
Size |
Height (cm) |
Height (inches) |
|
44 |
142 - 155 |
4’8 – 5’1” |
|
49 |
155 - 163 |
5’1 – 5’4” |
|
52 |
163 - 170 |
5’4 – 5’7” |
|
54 |
170 - 175 |
5’7 – 5’9” |
|
56 |
175 - 180 |
5’9 – 5’11” |
|
58 |
180 - 188 |
5’11 – 6’2” |
|
61 |
188 - 196 |
6’2 – 6’5” |
What size frame do I need if I am between sizes? - read here
Specialized Tarmac 2025 Geometry Chart
| Frame Size | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Stack | 501 | 514 | 527 | 544 | 565 | 591 | 612 |
| Reach | 366 | 375 | 380 | 384 | 395 | 402 | 408 |
| Head Tube Length | 99 | 109 | 120 | 137 | 157 | 184 | 204 |
| Head Tube Angle (°) | 70.5 | 71.75 | 72.5 | 73 | 73.5 | 73.5 | 74 |
| Bottom Bracket Height | 266 | 266 | 266 | 268 | 268 | 268 | 268 |
| Bottom Bracket Drop | 74 | 74 | 74 | 72 | 72 | 72 | 72 |
| Trail | 71 | 63 | 58 | 58 | 55 | 55 | 52 |
| Fork Length | 370 | 370 | 370 | 370 | 370 | 370 | 370 |
| Fork Rake/Offset | 47 | 47 | 47 | 44 | 44 | 44 | 44 |
| Front Centre | 572 | 574 | 577 | 579 | 592 | 606 | 613 |
| Chainstay Length | 410 | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase | 970 | 973 | 975 | 978 | 991 | 1005 | 1012 |
| Top Tube Length (horizontal) | 496 | 508 | 531 | 540 | 562 | 577 | 595 |
| Standover Height | 722 | 734 | 745 | 767 | 785 | 807 | 833 |
| Seat Tube Length | 433 | 445 | 456 | 473 | 494 | 515 | 545 |
| Seat Tube Angle (°) | 75.5 | 75.5 | 74 | 74 | 73.5 | 73.5 | 73 |
| Crank Length | 165 | 165 | 170 | 172.5 | 172.5 | 175 | 175 |
| Saddle Width | 155 | 155 | 155 | 143 | 143 | 143 | 143 |
| Seatpost Length | 300 | 300 | 300 | 380 | 380 | 380 | 380 |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycles as shipped. Other geometry configurations may be available with certain bicycles. Please contact us via Live Chat to find out more.
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