FACT carbon fiber, full carbon monocoque, Zertz inserts

Specialized SL4 FACT 10r carbon, 1-1/8"" to 1-3/8"" head tube, compact race design, Zertz, internal rear brake cable, OSBB

Specialized Shallow Drop, alloy, 125mm drop, 75mm reach

Nylon, 105x78x28mm, loose balls w/ reflectors

Front: Axis Elite, quick-release, Rear: Axis Elite, quick-release

Body Geometry Toupé Sport, hollow Cr-Mo rails, 143mm

Specialized CG-R, FACT carbon, single-bolt, 27.2mm

Specialized, 3D forged alloy, 4-bolt, 7-degree rise

Front: Espoir Elite, 700x25mm, Rear: Espoir Elite, 700x25mm

The Roubaix SL4 makes sure that you have what you need to explore the road less traveled, while keeping room in your wallet for a mid-ride brew. It features a FACT 10r carbon fiber frame that's been outfitted with Shimano's bombproof Tiagra components, an ultra-stiff Praxis crankset, and smooth-rolling Axis Elite wheels. Of course, you'll also benefit from our proprietary technology that's been tested and proven on the cobbles of Northern France, like our vibration absorbing Zertz inserts throughout the frame and fork and a compact race design. So go ahead and push it to the limits—the Roubaix will take it and keep coming back for more.

Specialized Roubaix SL4

The Specialized Roubaix is celebrated for its innovative Future Shock suspension system, offering a smooth ride over rough terrain while maintaining a race-ready stiffness and efficiency. Its redesigned frame and wide tire clearance enhance comfort and control, making it a standout in the endurance category. However, opinions vary on the Future Shock's undamped performance and the bike's suitability for aggressive riding styles.

MSRP
Where to Buy	— $1 At
Category	Endurance
	4.3
Frame	Carbon
	Carbon
Wheels	Aluminum
Wheel Size	700c
	Axis Rim


	Tiagra
Drivetrain	2 × 10
Brand Site	specialized.com
Summary	The Specialized Roubaix SL4 is a carbon frame endurance bike with mid-range components and axis rim brakes.

Frame	Specialized SL4 FACT 10r carbon, 1-1/8"" to 1-3/8"" head tube, compact race design, Zertz, internal rear brake cable, OSBB
Fork	FACT carbon fiber, full carbon monocoque, Zertz inserts
Bottom Bracket	Praxis
Stem	Specialized, 3D forged alloy, 4-bolt, 7-degree rise
Handlebar	Specialized Shallow Drop, alloy, 125mm drop, 75mm reach
Saddle	Body Geometry Toupé Sport, hollow Cr-Mo rails, 143mm
Seatpost	Specialized CG-R, FACT carbon, single-bolt, 27.2mm Type: Rigid
Pedals	Nylon, 105x78x28mm, loose balls w/ reflectors

Rear Derailleur	Shimano Tiagra, long cage, 10-speed
Front Derailleur	Shimano Tiagra, braze-on
Crank	Praxis Alba, 50/34T
Shifters	Shimano Tiagra STI, 10-speed
Cassette	Shimano Tiagra, 10-speed, 11-34t
Chain	KMC X10, 10-speed w/reusable MissingLink
Brakes	Front: AXIS 1.0, Rear: AXIS 1.0 Type: Axis Rim

Rims	Front: Axis Elite, quick-release, Rear: Axis Elite, quick-release
Tires	Front: Espoir Elite, 700x25mm, Rear: Espoir Elite, 700x25mm