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 2.0 wheels provide semi-aero performance with strong lightweight rims
Espoir Elite 25c tyres w/ BlackBelt protection for a smooth fast and confident ride
FSA Gossamer Pro BB30 crankset delivers excellent power transfer
AXIS 1.0 brakes offer efficient confident braking in all conditions
Crisp and precise shifting with the always reliable Shimano 105 11-speed rear derailleur
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 anti-corrosion hardware
HANDLEBARS Specialized Comp shallow drop 6061 alloy 125mm drop 70mm reach
TAPE Specialized Roubaix w/ 2.5mm gel pads
FRONT BRAKE AXIS 1.0
REAR BRAKE AXIS 1.0
FRONT DERAILLEUR Shimano 105
REAR DERAILLEUR Shimano 105 11-speed long cage
SHIFT LEVERS Shimano 105 STI 11-speed
CASSETTE Shimano 105 11-speed 11-32
CHAIN Shimano 105 11-speed
CRANKSET FSA Gossamer BB30
PEDALS Nylon flat test ride loose-ball w/ reflectors
FRONT WHEEL AXIS 2.0
REAR WHEEL AXIS 2.0
FRONT TYRE Specialized Espoir Elite 60TPI folding bead double BlackBelt protection 700x25c
REAR TYRE Specialized Espoir Elite 60TPI folding bead double 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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