Specialized Roubaix SL8 Comp – Comfort, speed, and control beyond limits

The Specialized Roubaix SL8 Comp represents the evolution of the Road Endurance category that Specialized created over twenty years ago, proving that ergonomics and performance can coexist. Today, with the new Future Shock 3.0, the Roubaix becomes lighter, faster, and more comfortable than ever. Even when the road turns into hell, this bike will make you feel like you're in heaven.

Vibration Absorption – Future Shock 3.0: more control, more speed

The Future Shock 3.0 is the heart of the Roubaix SL8:

• Offers 20 mm of frictionless travel, regardless of riding position.

• Keeps hands stable on the handlebars, ensuring control and speed on rough surfaces.

The lowered seatpost clamp increases seatpost flex, while the Pavé seatpost controls movement for optimal vertical absorption: together they form the AfterShock technology.

This solution allows the bike to be extremely smooth without losing efficiency.
The SL8 is the most comfortable bike ever tested by the Ride Science Team:

• 53% less impact transmitted to the handlebars compared to the competition.

The front wheel clears obstacles while maintaining trajectory, avoiding the fork flex that would normally slow you down.

Result: more comfort = more speed.

Capacity and Ergonomics – Endurance geometry, total control

The Roubaix's endurance geometry makes you feel “in” the bike, not on top of it:

• Less pressure on hands, shoulders, and arms

• Better control on descents and uneven terrain

• More safety on long rides and rough surfaces

Clearance for tires up to 38c/40 mm increases traction and comfort without compromises, thanks to lightweight and smooth Specialized tires.

Designed for long adventures, the Roubaix offers:

• 3 bottle cage mounts

• Top tube bag mount

• Fender compatibility

Perfect for those who want to ride all day, anywhere.

Performance – The most aerodynamic and lightest Roubaix ever

The Roubaix SL8 is now the most aerodynamic endurance bike in its category, thanks to:

• Profiles optimized through FreeFoil Library

• Lowered chainstays with a more efficient design

Inspired by the Aethos project, the lightest road bike ever made, the Roubaix uses a new FACT frame:

• Weight of only 825 g

• 50 g lighter than the previous version

• No endurance bike is faster or lighter

A unique combination of aerodynamics, comfort, and performance.

Technical Specifications

Frame

• FACT 10R

• Rider First Engineered (RFE)

• FreeFoil Shape Library tubes

• Threaded bottom bracket

• 12x142 mm thru axle

• Flat-mount disc brake

Suspensions

• Fork: Future Shock 3.2 with Smooth Boot

• FACT Carbon

• 12x100 mm thru axle

Cockpit

• Handlebar bend: Specialized Hover Comp, alloy, 125 mm drop, 75 mm reach, Di2 port

• Saddle: Body Geometry Power Sport, steel rails

• Stem: Future Stem Comp

• Collar: Hidden seatpost clamp

• Seatpost: S-Works Pavé

• Handlebar tape: Supacaz Super Sticky Kush

Brakes

• Front: Shimano 105, hydraulic disc

• Rear: Shimano 105, hydraulic disc

Drivetrain

• Gears: 50/34T

• Shift levers: Shimano 105 R7170, hydraulic disc

• Cassette: Shimano 105, 12v, 11–36t

• Crankset: Shimano 105, 12-speed

• Rear derailleur: Shimano 105 R7150, 12-speed

• Front derailleur: Shimano 105 R7170, braze-on

• Chain: Shimano 105, 12-speed

• Bottom bracket: Shimano BSA threaded

Wheels and Tires

• Inner tubes: 700x28/38 mm, Presta valve 48 mm

• Front tire: S-Works Mondo 2BR, 700x32c

• Rear tire: S-Works Mondo 2BR, 700x32c

Front wheel

• DT Swiss G540 rim, 24 mm internal

• Tubeless ready

• 24 spokes

• Specialized thru-axle hub with sealed bearings

• Centerlock disc

• DT Swiss Champion 14G stainless steel spokes

• DT Swiss brass nipples

Rear wheel

• DT Swiss G540 rim, 24 mm internal

• Tubeless ready

• 24 spokes

• Specialized thru-axle hub with sealed bearings

• Centerlock disc

• DT Swiss Champion 14G stainless steel spokes

• DT Swiss brass nipples

Accessories

• Test pedals provided by Specialized

Weight

• 8.97 kg (19 lb, 12.4 oz)

• Tested size: 56