2025 Specialized Roubaix SL8 Pro Ultegra Di2 Road Bike
The 2025 Specialized Roubaix SL8 Pro redefines what an endurance road bike can be—lighter, faster, and smoother than ever before. Featuring Future Shock 3.0, refined aerodynamics, and a premium Shimano Ultegra Di2 drivetrain, the Roubaix SL8 delivers unparalleled confidence, control, and comfort on the roughest roads.
Developed through decades of Ride Science research, the Roubaix proves that true comfort is performance. While the road may be brutal below, the Roubaix ensures pure riding bliss above.
Future Shock 3.0 – Smoother Is Faster
At the heart of the Roubaix SL8 lies Future Shock 3.0, providing 20mm of tunable, friction-free vertical compliance between the stem and head tube. This system isolates rider mass from road impacts, keeping hands and bars steady while maintaining momentum over rough surfaces.
Compared to traditional forks that flex backward and rob speed, Future Shock allows the wheel to move while the rider remains stable—scientifically proven to be faster and more efficient.
AfterShock Technology & Pavé Seatpost
The dropped seat clamp design exposes more of the S-Works Pavé seatpost, enabling controlled vertical flex. This system—known as AfterShock technology—works in harmony with the stiff rear triangle to deliver exceptional comfort without sacrificing pedaling efficiency.
Endurance Geometry & All-Road Capability
Roubaix’s endurance geometry places you in the bike rather than on it, reducing pressure on hands, arms, and shoulders while maintaining confident high-speed handling. With tyre clearance up to 38c / 40mm, the Roubaix excels on rough asphalt, broken pavement, and even light gravel.
Lightweight, Aero & Adventure-Ready
The FACT 10r carbon frame weighs just 950 grams and incorporates aero tube shapes from Specialized’s Free Foil library. Multiple bottle mounts, top-tube mounts, and fender compatibility make the Roubaix perfect for epic endurance days and long-distance adventures.
Key Features
- Future Shock 3.0 with 20mm vertical compliance
- FACT 10r carbon endurance road frame
- Shimano Ultegra Di2 12-speed electronic shifting
- Ultegra power meter crankset (4iiii)
- Roval Terra CL II tubeless-ready carbon wheels
- Up to 38c / 40mm tyre clearance
- AfterShock technology with Pavé seatpost
| Frame & Fork | Future Shock 3.3, FACT Carbon, 12x100mm, flat-mount disc |
|---|---|
| Handlebar | S-Works Carbon Hover Drop, 125mm drop, 75mm reach |
| Stem | Future Stem Pro |
| Bar Tape | Supacaz Super Sticky Kush Classic |
| Saddle | Body Geometry Power Pro Mirror, titanium rails |
| Seatpost | S-Works Pavé Seatpost |
| Seat Clamp | Hidden drop clamp |
| Front Brake | Shimano Ultegra R8170 hydraulic disc |
| Rear Brake | Shimano Ultegra R8170 hydraulic disc |
| Shifters | Shimano Ultegra Di2 R8170 |
| Front Derailleur | Shimano Ultegra Di2 R8150 |
| Rear Derailleur | Shimano Ultegra Di2 R8150, 12-speed |
| Crankset | Shimano Ultegra R8100 with 4iiii Power Meter |
| Chainrings | 50 / 34T |
| Cassette | Shimano Ultegra 12-speed, 11-34T |
| Chain | Shimano M8100, 12-speed |
| Bottom Bracket | Shimano Threaded BSA |
| Front Wheel | Roval Terra CL II, 25mm internal, 32mm depth |
| Rear Wheel | Roval Terra CL II, 25mm internal, 32mm depth |
| Tyres | S-Works Mondo 2BR, 700x32c |
Specifications are subject to change without notice.
