Specialized Roubaix SL8 Expert – Shimano Ultegra Di2
The Specialized Roubaix SL8 Expert provides pure endurance speed, benchmark compliance, and uncompromised control. Constructed on an ultralight FACT 10R carbon frame with Rider-First Engineered™ shaping and an S-Works Pavé carbon seatpost, this build is upgraded with Future Shock 3.2 front suspension, electronic Shimano Ultegra Di2 12-speed wireless shifting, hydraulic disc brakes, and tubeless-ready Roval C38 carbon wheels fitted with high-performance Mondo TLR endurance tires.
Key Specifications & Frameset
| Frame | FACT 10R Carbon, Rider First Engineered™, FreeFoil Shape Library Tubes, Threaded BB, 12x142mm Thru-Axle, Flat-Mount Disc |
| Front Suspension / Fork | Future Shock 3.2 w/ Smooth Boot, FACT Carbon 12x100mm Thru-Axle, Flat-Mount Disc |
| Cockpit | Specialized Hover Expert Alloy Handlebar, Future Stem Pro, Supacaz Super Sticky Kush Tape |
| Saddle & Post | Body Geometry Power Expert Saddle & S-Works Pavé Carbon Seatpost w/ Hidden Drop Clamp |
| Weight | 8.17 kg / 18 lbs 0.2 oz (Size 56cm) |
Drivetrain & Brakes
| Drivetrain | Shimano Ultegra Di2 (FD-R8150 / RD-R8150), 2×12-Speed Electronic Wireless |
| Shifters / Levers | Shimano Ultegra Di2 R8170 Hydraulic Disc |
| Brake System | Shimano Ultegra R8100 Hydraulic Disc |
| Crankset | Shimano Ultegra R8100, 50/34T Compact |
| Cassette | Shimano Ultegra CS-R8100, 11-34T, 12-Speed |
| Chain & BB | Shimano XT CN-M8100 12s & Shimano Threaded BSA Bottom Bracket |
Wheels & Tires
| Wheelset | Roval C38 Carbon Disc Wheelset (21mm internal width, Tubeless Ready) |
| Tires | Mondo TLR Endurance Tire, GRIPTON T2/T5 Compound, 700x32c |
| Inner Tubes | Presta Valve, 700×28-38mm, 48mm Valve Stem |
