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Description
S-Works SL4 FACT 11r frame with Zertz is the fastest and smoothest endurance bike available is incredibly lightweight with size specific engineering, tapered headtube, S-Works FACT carbon fork with Zertz and size-specific engineering that creates a more balanced and stable ride for riders of different sizes.
All-new, hydraulic SRAM RED 22 rim brakes offer the lightest hydraulic setup possible, with prefect modulation and stopping power; the shifters employ DoubleTap technology for simple, intuitive shifting and reach adjustment for perfect fit
Specialized S-Works FACT carbon OSBB crankset, removable carbon spider, and CeramicSpeed ceramic bearings has incredible stiffness-to-weight for max power delivery
Ultra-light, Roval Rapide CLX 40 carbon wheelset with CeramicSpeed bearings is optimized for condifent braking, low aerodynamic drag and crosswind stability
Ultra-light and stiff Body Geometry Toupe Pro saddle with carbon rails delivers incredible comfort and support for the long days of pedaling
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
FRAME | S-Works SL4 FACT 11r carbon, FACT construction, tapered/shaped 1-1/8” to size-specific lower headtube, compact race design, Zertz, internal cable routing, carbon OSBB |
FORK | S-Works Roubaix FACT carbon full monocoque, disc-specific, Zertz, size-specific, hollow carbon dropouts |
HEADSET | 1-1/8” upper and size-specific lower, hybrid cartridge lightweight bearings, 8mm carbon cone spacer, w/ 20mm of carbon spacers |
STEM | S-Works SL, 3D forged 7075 aluminium, 6-degree rise, titanium hardware, 31.8mm |
HANDLEBAR | S-Works Shallow Drop, FACT carbon, 125mm drop, 75mm reach |
BAR TAPE | S-WRAP |
FRONT BRAKE | SRAM RED, hydraulic rim |
REAR BRAKE | SRAM RED, hydraulic rim |
BRAKE LEVERS | SRAM RED, hydraulic |
FRONT DERAILLEUR | SRAM RED 22, braze-on, 11-speed, YAW, w/ chain spotter |
REAR DERAILLEUR | SRAM RED 22, 11-speed |
SHIFT LEVERS | SRAM RED 22, DoubleTap, 11-speed, integrated hydraulic lever |
CASSETTE | SRAM RED 22, 11-speed, 11-28 |
CHAIN | SRAM RED 22 w/ PowerLink |
CRANKSET | S-Works FACT carbon, OSBB |
CHAINRINGS | SRAM RED 22, 50/34 |
BOTTOM BRACKET | OS integrated, CeramicSpeed, sealed ceramic bearings |
PEDALS | Nylon flat test ride, loose ball, w/ reflectors |
FRONT WHEEL | Roval Rapide CLX 40, w/ CeramicSpeed bearings |
REAR WHEEL | Roval Rapide CLX 40, w/ CeramicSpeed bearings |
FRONT TYRE | S-Works Turbo, 220TPI, foldable aramid bead, BlackBelt protection, 700x26c |
REAR TYRE | S-Works Turbo, 220TPI, foldable aramid bead, BlackBelt protection, 700x26c |
INNER TUBES | Turbo Ultralight, 60mm presta valve |
SADDLE | Body Geometry Toupe Pro, carbon rails, 143mm |
SEATPOST | S-Works CG-R, FACT carbon w/ Zertz, 27.2mm |
SEAT BINDER | Forged alloy, Ti bolt, 32.6mm |
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
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Why buy your bike from Sigma Sports?
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Save up to 42% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service $136.00 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
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Important Update for Our US Customers
We regret to inform you that due to ongoing challenges related to current US tariffs, shopping on Sigma Sports is temporarily unavailable for customers based in the United States.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our US community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team