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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.
Fulcrum S4 wheelset is strong lightweight and ready to race
Specialized Turbo Pro tyres deliver low rolling resistance w/ superior cornering traction
TURN Zayante BB30 crank provides excellent power transfer
Always reliable Shimano 105 brakes for effective braking in all conditions
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
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
HANDLEBARS Specialized Comp shallow drop alloy 125mm drop 70mm reach
TAPE Specialized Roubaix w/ 2.5mm gel pads
FRONT BRAKE Shimano 105
REAR BRAKE Shimano 105
FRONT DERAILLEUR Shimano Ultegra Di2 11-speed braze-on
REAR DERAILLEUR Shimano Ultegra Di2 11-speed
CASSETTE Shimano 105 11-speed
CHAIN Shimano 105 11-speed
CRANKSET Praxis Works TURN Zayante BB30
PEDALS Nylon flat test ride loose-ball w/ reflectors
FRONT WHEEL Fulcrum S4
REAR WHEEL Fulcrum S4
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 31.6mm
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