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ROUBAIX EXPERT SL4 DI2
£4,000

The smoother, faster Roubaix SL4 Expert Di2 features a super light and stiff FACT 10r carbon frame with tapered head tube, Zertz vibration dampers, and full internal cable routing—the same design that Tom Boonen rode to win the 2012 Paris-Roubaix. Equipped with Shimano Ultegra Di2 components, and DT Axis 4.0 wheels.

  • Specialized FACT IS 10r carbon SL4 frame with Zertz is the fastest and smoothest endurance bike available, with size specific engineering, tapered headtube, ultra lightweight.
  • All-new Specialized FACT carbon fork with Zertz has size-specific engineering that creates a more balanced and stable ride for riders of different sizes
  • Specialized Roubaix Pro 120 TPI tyre has 23mm tread handles quick and fast while the 25c casing smoothes our ride and keeps you fresh longer
  • Shimano Ultegra compact crankset for legendary shifting performance
  • Specialized Expert shallow drop alloy bar for serious performance; wrapped with non-slip Specialized Roubaix tape for vibration-damping
  • New Shimano Ultegra Di2 10-speed electronic shifters for precise, hassle-free shifting, while Shimano Ultegra compact crankset keeps shifting butter smooth and laser accurate
  • Minimalist, high-performance BodyGeometry Toupe RBX saddle with hollow Cr-Mo rails, flat profile and generous padding; partnered with FACT carbon Comp seatpost to absorb road vibrations


Technical Specifications

FRAME Specialized FACT 10r carbon, FACT IS construction, tapered/shaped 1-1/8″ to size specific lower HT, compact race design, Zertz, internal cable routing, threaded BB
REAR SHOCK
FORK Roubaix size specific, FACT carbon full monocoque, Zertz
HEADSET 1-1/8″ upper and size specific lower Cr-Mo cartridge bearings, 20mm carbon cone spacer and 20mm of carbon spacers
STEM Specialized Comp-Set 6061 alloy, cone head bolt, 12-degree, 4-degree shim, 31.8mm
HANDLEBARS Specialized Expert alloy, shallow drop
TAPE Specialized Roubaix tape w/ 2.5 gel pads
FRONT BRAKE Shimano Ultegra
REAR BRAKE Shimano Ultegra
BRAKE LEVERS
FRONT DERAILLEUR Shimano Ultegra Di2
REAR DERAILLEUR Shimano Ultegra Di2
SHIFT LEVERS Shimano Ultegra Di2
CASSETTE Shimano Tiagra, 10-speed, 11-28
CHAIN Shimano Tiagra 10-speed
CRANKSET Shimano Ultegra compact
CHAINRINGS 50/34
BOTTOM BRACKET Shimano Hollowtech II
PEDALS Nylon flat test ride, loose ball, w/ reflectors
FRONT WHEEL DT Axis 4.0
REAR WHEEL DT Axis 4.0
RIMS
FRONT HUB
REAR HUB
SPOKES
FRONT TYRE Specialized Roubaix Pro, BlackBelt, 120TPI, aramid bead, 700x25c
REAR TYRE Specialized Roubaix Pro, BlackBelt, 120TPI, aramid bead, 700x25c
INNER TUBES Lightweight, presta
SADDLE BodyGeometry Toupé RBX Comp, hollow Cr-Mo rails, 143mm
SEATPOST Specialized Comp, FACT carbon, 27.2mm
SEAT BINDER Forged bolt and nut, 32.6mm
NOTES Carbon chainstay protector, derailleur hanger, clear coat, owners manual

Geometry

* *Not all sizes available in all markets

Size 49 52 54 56 58 61 64
Seat-Tube Length, B-B Center to Top 445mm 475mm 495mm 515mm 540mm 565mm 600mm
Top-Tube Length, Horizontal 518mm 537mm 548mm 565mm 582mm 600mm 615mm
B-B Drop 73mm 73mm 71.5mm 71.5mm 70mm 70mm 70mm
Chain-Stay Length 412mm 412mm 415mm 415mm 418mm 420mm 420mm
Seat-Tube Angle 75.5° 74° 73.5° 73.25° 73° 72.5° 72.5°
Head-Tube Angle 72° 72° 72° 72.5° 72.5° 73° 73°
Fork Rake 49mm 49mm 49mm 49mm 49mm 49mm 49mm
Trail 59mm 59mm 59mm 56mm 56mm 53mm 53mm
Front-Center 582mm 588mm 595mm 606mm 621mm 628mm 643mm
Wheelbase 983mm 989mm 1000mm 1010mm 1029mm 1038mm 1053mm
Stand-Over Height 730mm 756mm 776mm 798mm 829mm 851mm 877mm
Head-Tube Length 125mm 145mm 165mm 190mm 225mm 245mm 260mm
Handle-Bar Width 400mm 420mm 420mm 420mm 440mm 440mm 440mm
Stem Length 75mm 90mm 100mm 100mm 110mm 110mm 120mm
Crank Length 170mm 170mm 172.5mm 172.5mm 175mm 175mm 175mm
Seat-Post Length 300mm 350mm 350mm 350mm 350mm 350mm 350mm
WP Post Tabs

London

Shorter Rochford

65-67 Woodhouse Road

Finchley

London

N12 9ET

020 8445 9182

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  • Opening Hours
  • Mon-Tue 9:00 - 18:00

    Wednesday 9:00 - 19:00

    Thursday closed

    Friday 9:00 - 18:00

    Saturday 9:00 - 17:30

    Sunday Closed

    HERTFORDSHIRE

    Shorter Rochford

    27 Barnet Road

    Potters Bar

    Herts

    EN6 2QX

    01707 662 332

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  • Opening Hours
  • Mon-Tue 9:00 - 18:00

    Wednesday Closed

    Thurday 9:00 - 18:00

    Friday 9:00 - 18:00

    Saturday 9:00 - 17:30

    Sunday Closed

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