Specialized S-Works Roubaix SL8 SRAM RED AXS 2025

The Specialized S-Works Roubaix SL8 SRAM RED AXS combines race-level performance with the comfort, control and versatility that define the Specialized Roubaix endurance road platform.

Built around a lightweight FACT 12R carbon frame, the S-Works Roubaix SL8 features Future Shock 3.3, SRAM RED AXS electronic shifting with an integrated power meter, Roval Terra CLX II carbon wheels and 32mm S-Works Mondo tires.

Designed for long, fast days on the road, it delivers responsive performance while providing additional compliance and tire clearance for rough pavement and demanding endurance routes.

Future Shock 3.3 with 20mm Travel

The Roubaix SL8 uses Future Shock 3.3 between the stem and head tube to provide 20mm of smooth front-end travel.

Rather than suspending the bicycle itself, Future Shock is designed to isolate the rider from road impacts while keeping the front wheel responsive to the surface below.

Specialized states that the Roubaix SL8 reduces impacts at the handlebar and saddle by up to 53% compared with the closest competition tested by its Ride Science team.

FACT 12R Carbon Frame

The S-Works Roubaix SL8 uses Specialized's premium FACT 12R carbon construction with Rider First Engineered geometry and FreeFoil tube shaping.

Specialized lists the frame at approximately 825g, making it 50g lighter than the previous generation while also improving aerodynamic efficiency.

A threaded bottom bracket, flat-mount disc brakes and modern thru-axles provide a practical foundation for a premium endurance road bike.

SRAM RED AXS with Power Meter

This 2025 S-Works Roubaix SL8 is equipped with the latest SRAM RED AXS 12-speed electronic drivetrain.

The drivetrain includes:

• SRAM RED AXS shifters

• SRAM RED AXS front and rear derailleurs

• SRAM RED AXS Power Meter crankset

• 46/33T chainrings

• SRAM RED XG-1290 10-36T cassette

• SRAM RED hydraulic disc brakes

• 160mm front and rear rotors

The integrated power meter provides real-time power data for structured training, pacing and racing.

Roval Terra CLX II Carbon Wheels

The bike comes equipped with Roval Terra CLX II carbon wheels featuring a 25mm internal rim width and 32mm rim depth.

The wheels use Roval LFD hubs with ceramic SINC bearings and DT Swiss Aerolite spokes.

They are paired with S-Works Mondo 2BR 700x32c tires, creating a fast, high-volume road setup designed for comfort and control across rough pavement.

Up to 38c / 40mm Tire Clearance

The Roubaix SL8 offers clearance for tires up to approximately 38c / 40mm, giving riders significantly more flexibility than a traditional race road bike.

The additional clearance allows the bike to handle broken pavement, rough roads and even light gravel while retaining its endurance-road handling and efficiency.

The frame also includes three bottle mounts, top-tube mounting points and compatibility with fenders.

Endurance Geometry for Long Rides

The Specialized Roubaix pioneered a performance-focused endurance geometry designed to place the rider more naturally in the bike rather than on top of it.

The position is intended to reduce strain on the hands, arms and shoulders during long rides while maintaining confident handling on fast descents and technical roads.

Combined with Future Shock and the S-Works Pavé seatpost, this geometry makes the Roubaix SL8 particularly suited to high-speed endurance riding.

Specifications

• Model: Specialized S-Works Roubaix SL8 SRAM RED AXS

• Model year: 2025

• Frame: FACT 12R carbon, Rider First Engineered

• Fork: FACT Carbon with Future Shock 3.3

• Future Shock travel: 20mm

• Drivetrain: SRAM RED AXS 12-speed

• Power meter: SRAM RED AXS

• Chainrings: 46/33T

• Cassette: SRAM RED XG-1290 10-36T

• Brakes: SRAM RED hydraulic disc

• Wheels: Roval Terra CLX II

• Tires: S-Works Mondo 2BR 700x32c

• Handlebar: S-Works Carbon Hover

• Stem: S-Works Future Stem

• Seatpost: S-Works Pavé

• Saddle: S-Works Power with Mirror

• Maximum tire clearance: Approx. 38c / 40mm

• Weight: Approx. 7.2kg / 15 lb 14 oz in size 56

What is the Specialized S-Works Roubaix SL8 designed for?

The S-Works Roubaix SL8 is a high-performance endurance road bike designed for long, fast rides, rough pavement and riders who want road-race efficiency with additional comfort and control.

How much travel does the Roubaix SL8 Future Shock have?

The Future Shock system provides 20mm of front-end travel between the stem and head tube.

Does the S-Works Roubaix SL8 SRAM RED AXS have a power meter?

Yes. This build includes a SRAM RED AXS Power Meter crankset.

What wheels come on the S-Works Roubaix SL8?

This configuration uses Roval Terra CLX II carbon wheels with 25mm internal width and ceramic SINC bearings.

What is the tire clearance on the Roubaix SL8?

Specialized lists clearance for tires up to approximately 38c / 40mm, depending on the tire and rim combination.