Roubaix SL4 Expert Ultegra Di2 Disc
Part No.  

Roubaix SL4 Expert Ultegra Di2 Disc

Part No.  
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Roubaix SL4 Expert Ultegra Di2 Disc
Overview
Technical Specifications
Reviews
Smoother is faster. The more comfortable and less fatigued you are at the end of a 4 hour ride, the stronger you'll be. Like shocks on a race car, the Zertz vibration damping inserts on the Roubaix SL4 help absorb road impact and keep power planted firmly on the road - couple that with a FACT carbon 10r frame and it's still plenty stiff to thrash around in a sprint. Just ask four time Paris-Roubaix champion Tom Boonen
  • Specialized SL4 FACT 10r disc frame with Zertz is fast and smooth, with incredible light weight, size-specific engineering, and tapered headtube, FACT carbon fork with Zertz has size-specific engineering to create a more balanced and stable ride for riders of different sizes
  • The revolutionary CG-R post features 18mm of vertical compliance and Zertz vibration damping, while FACT carbon construction delivers unsurpassed comfort, control, and efficiency without adding weight or complication to the frame
  • New Shimano hydraulic disc brakes provide the precise performance Shimano is known for, paired with Shimano Di2 STI shifters, renowned for their race-ready performance and exceptionally consistent shifting in all conditions
  • Specialized Roubaix Pro 23/25c is fast like a competitive tire, but features unique casing technologies for added comfort and puncture protection
  • Romin Expert Gel saddle, with hollow Ti rails, delivers the same ergonomically designed, scientifically-proven Body Geometry features that allow riders to deliver power in high-performance positions

Technical Specifications

DRIVETRAIN
CHAIN Shimano Ultegra, 11-speed
BOTTOM BRACKET OS integrated, sealed bearings
CRANKSET FSA SL-K Light, carbon, BB30
FRONT DERAILLEUR Shimano Ultegra Di2, braze-on, 11-speed
SHIFT LEVERS Shimano Di2 STI, 11-speed
CASSETTE Shimano Ultegra, 11-speed, 11-32
CHAINRINGS 50/34
REAR DERAILLEUR Shimano Ultegra Di2, 11-speed
WHEELS
REAR WHEEL AXIS 4.0 Disc
INNER TUBES Standard presta valve
FRONT TIRE Specialized Roubaix Pro, 120TPI, foldable aramid bead, BlackBelt protection, 700x23/25c
REAR TIRE Specialized Roubaix Pro, 120TPI, foldable aramid bead, BlackBelt protection, 700x23/25c
FRONT WHEEL AXIS 4.0 Disc
COCKPIT
SADDLE Body Geometry Romin Expert Gel, hollow Ti rails, 143mm
TAPE Specialized Roubaix, w/ 2.5 gel pads
SEATPOST S-Works CG-R, FACT carbon w/ Zertz, 27.2mm
STEM Specialized Expert Pro-Set, 3D forged aluminum, 4-position adjustable, 4-bolt, 31.8mm
HANDLEBARS Specialized Expert Shallow Bend, alloy, 123mm drop, 75mm reach
BRAKES
FRONT BRAKE Shimano, hydraulic
BRAKE LEVERS Shimano, hydraulic lever
REAR BRAKE Shimano, hydraulic
ACCESSORIES
PEDALS Nylon flat test ride, loose ball, w/ reflectors
FRAMESET
HEADSET 1-1/8"" upper and size specific lower, stainless steel cartridge bearings, 20mm carbon cone spacer, w/ 20mm of carbon spacers
SEAT BINDER Forged alloy, Ti bolt, 32.6mm
FORK Specialized Roubaix FACT carbon full monocoque, Zertz, size-specific
FRAME Specialized SL4 FACT 10r carbon, FACT construction, tapered/shaped 1-1/8"" to size-specific lower headtube, compact race design, Zertz, internal cable routing, carbon OSBB

Reviews