Smoother is faster. The more comfortable and less fatigued you are at the end of a 4-hour ride the stronger youll 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 8r frame and its still plenty stiff to thrash around in a sprint.
AXIS 4.0 Disc wheelset is reliable and strong
Specialized Turbo Pro tyres deliver low rolling resistance w/ superior cornering traction
TURN Zayante BB30 crank provides excellent power transfer
Shimano 785 hydraulic disc brakes provide reliable consistent stopping power
Shimano Ultegra 11-speed rear derailleur is lightweight w/ smooth and precise shifting
Minimalist high-performance Body Geometry Toupé Comp Gel saddle w/ hollow Cr-Mo rails
Lightweight and efficient FACT carbon CG-R seatpost w/ Zertz vibration damping
Technical Specifications
FRAME Specialized SL4 FACT 8r carbon 1-1/8" to 1-3/8" headtube compact race design Zertz internal rear brake cable OSBB
FORK Specialized FACT carbon disc
HEADSET 1-1/8" upper 1-3/8" lower Cr-Mo cartridge bearings 20mm cone spacer w/ 20mm of spacers
STEM Specialized Comp Multi 3D forged alloy 4-bolt 12-degree rise anti-corrosion hardware
HANDLEBARS Specialized Comp shallow drop 6061 alloy 125mm drop 70mm reach
TAPE Specialized Roubaix w/ 2.5mm gel pads
FRONT BRAKE Shimano 785 hydraulic disc Ice Tech resin pads w/ fins
REAR BRAKE Shimano 785 hydraulic disc Ice Tech resin pads w/ fins
FRONT DERAILLEUR Shimano Ultegra 11-speed braze-on
REAR DERAILLEUR Shimano Ultegra 11-speed long cage
SHIFT LEVERS Shimano 685
CASSETTE Shimano 105 11-speed
CHAIN Shimano 105 11-speed
CRANKSET Praxis Works TURN Zayante BB30 50/34
PEDALS Nylon flat test ride loose-ball w/ reflectors
FRONT WHEEL AXIS 4.0 Disc
REAR WHEEL AXIS 4.0 Disc
FRONT TYRE Specialized Turbo Pro 127TPI folding bead BlackBelt protection 700x25c
REAR TYRE Specialized Turbo Pro 127TPI folding bead BlackBelt protection 700x25c
INNER TUBES Standard presta valve
SADDLE Body Geometry Toupé Comp Gel hollow Cr-Mo rails 143mm
SEATPOST Specialized CG-R FACT carbon single bolt 27.2mm
SEAT BINDER Alloy 32.6mm
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