Specialized Roubaix SL8 Sport 105

Specialized created the endurance road category two decades ago proving that high ergonomics means high performance. Today, the new Roubaix SL8 with Future Shock 3.0 is lighter, faster, and smoother than any road bike ever made, unleashing unmatched confidence. The road may be hell below, but on Roubaix, it’s always heaven above. The dropped clamp design exposes more seatpost to increase deflection, but “more” isn’t simply better. The Pavé seatpost controls that deflection for the optimal vertical compliance. Together they create AfterShock technology, and when paired with the Roubaix’s rigid rear triangle, deliver a smooth ride with no loss in efficiency. The Roubaix SL8 is the smoothest road bike the Ride Science Team has ever tested—reducing impacts at the bars and saddle by 53% vs. the nearest competition. With Roubaix’s Future Shock 3.0 the wheel quickly moves over the bump, while rider mass remains stable, maintaining momentum in rough terrain. Typical forks deflect backward on impact, causing a measurable loss in speed. It’s a scientific fact, smoother is indeed faster. With tire clearance up to 40mm, this endurance road machine delivers better traction than ever on rough roads and even light gravel. Thanks to lightweight, super-efficient Specialized tires, that extra tire volume and traction comes with no downsides. Roubaix inspires really BIG days on the bike, so Specialized has given it every mount your adventures could need—three bottle mounts, top-tube mounts, and it’s even fender-ready. So, go ahead and bring it all along for the ride.

Compliance
Future Shock 3.0 is the star of the show, more tunable, adjustable, and durable than ever. Now, regardless of position on the bike, every rider experiences 20mm of smooth, stiction-free travel between the stem and head tube. Future Shock helps keep your hands and bars steady for a smoother ride with more control to stay fast, safe, and confident.

Capability
The Roubaix pioneered endurance geometry, so you ride “IN” the bike, not “ON” the bike to relieve pressure on your hands, arms, and shoulders for capability and confidence on any road, yet it’s ready to dissect a mountain decent at full gas. Snuggle up.

Performance
The new Roubaix SL8 is the most aero yet, with new aero shapes from the Free Foil library and dropped seat stays. At just 950 grams, the frame is lighter, utilizing lessons learned from the Aethos - the world’s lightest production frame - and Fact 10r carbon blend. Nothing in its class is faster or lighter than the Roubaix.

Smoother is faster
Smoother is faster comes from suspending the rider, not the bike. As rough roads impact your Roubaix, the all-new Future Shock 3.0 and AfterShock technology keep you floating above the chaos - reducing impacts by 53% vs. the nearest competition.

Pioneering Endurance Geometry
The Roubaix’s endurance geometry delivers an “IN” the bike, not “ON” the bike feel that’s ideal for long rides. It relieves stress from your hands, arms, and shoulders, yet is ready to dissect any twisting mountain descent at full gas.

More Clearance, More Capable
With tire clearance up to 38c/40mm, this endurance road machine delivers better traction than ever on rough roads and even light gravel. Specialized has given it every mount your adventures could need—three bottle mounts, top-tube mounts, and it’s even fender-ready.

Aero and Lightweight at the top of the Class
The new Roubaix SL8 is the most aero yet, with new fork shaping, a reimagined downtube, and dropped seat stays. At just 825 grams, the frame is 50 grams lighter, utilizing lessons learned from the Aethos and the premium Fact 12r carbon blend. Nothing in its class is faster or lighter.

Tech Specs

Frameset

• Frame: FACT 10R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc

Suspension

• Fork: Future Shock 3.1 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc

Brakes

• Front Brake: Shimano 105 Hydraulic Disc, 160mm
• Rear Brake: Shimano 105 Hydraulic Disc, 160mm

Drivetrain

• Shift Levers: Shimano 105 R7120, Hydraulic Disc
• Front Derailleur: Shimano 105 R7100, braze-on
• Rear Derailleur: Shimnao 105 R7100, 12-Speed
• Cassette: Shimano 105, 12-speed, 11-36T
• Chain: Shimano 105, 12-Speed
• Crankset: Shimano 105, 12-Speed
• Chainrings: 50/34T
• Bottom Bracket: Shimano BSA

Wheels & Tires

• Front Tire: S-Works Mondo 2BR, 700x32c
• Front Wheel: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples
• Rear Tire: S-Works Mondo 2BR, 700x32c
• Rear Wheel: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples
• Inner Tubes: 700x28/38mm, 48mm Presta valve

Cockpit

• Stem: Future Stem Comp
• Handlebars: Specialized Hover Comp, Alloy, 125mm Drop, 75mm Reach w/Di2 Hole
• Tape: Supacaz Super Sticky Kush
• Saddle: Body Geometry Power Sport, steel rails
• SeatPost: S-Works Pave Seat post
• Seat Binder: Hidden drop clamp

Weight

• Producer's weight: 9.07kg (19 lb, 15.9 oz)
• Weight Size: 56

Producer's note: Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.