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Cervelo S3 Ultegra Di2 8070 Disc Road Bike 2019

★★★★★ ★★★★★
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Product ID: 938123

Engineered for speed, the Cervelo S3 Ultegra Di2 8070 Disc Road Bike balances stiffness and compliance, transferring your power efficiently.

Wind tunnel designed and tested, the frame shape together with the bar and stem design, and internal cable routing throughout, cut drag for significant benefits. Built up with Shimano's top electronic Di2 groupset and light and strong Novatec R5 Carbon wheels, the S3 is ready to perform.

Four great reasons to buy your bike from Sigma Sports

sigma sports expert advice and rider id
Expert Advice & Rider ID

Sigma Sports has one objective - to help you find your perfect bike. Our friendly, knowledgeable staff ask you a series of questions to understand what type of rider you are and the type of riding you do. We can then identify the style of bike that best suits your needs.

sigma sports finding the right bike size
Finding the right size

Riding a bike that fits you perfectly will help keep you injury-free and ensure you enjoy riding further for longer in total comfort. We check your measurements on a jig to ensure your optimal set-up.

sigma sports bike handover
Bike Handover

When you collect your new bike we'll double-check your position and make any micro-adjustments if required. We'll also discuss the controls on your bike as well as maintenance tips.

sigma sports first free safety check
First free safety check

We offer a free safety check after six weeks or 200 miles, so you can keep riding in confidence. Visit us now in-store to discuss your new bike.

Cervelo S3 Ultegra Di2 8070 Disc Road Bike 2019

Cervelo's S3 Ultegra Di2 8070 Disc Road Bike is ideal for crits and sprinting, with an incredibly strong and stiff frame that's ready to get you to the finish line faster. The frame layup and tubing shapes are not only aerodynamic but help to damp road vibrations for more comfort. With increased stiffness in the head tube and bottom bracket, you'll experience improved handling that's stable and precise at speed and through corners.

Specced with Shimano's Ultegra Di2 disc groupset, shifting is incredibly smooth and fast, and braking powerful. Novatec R5 48mm Carbon Disc wheels are strong and roll smooth and fast.


  • TrueAero combines specific tube shapes, sizes and design features to improve aerodynamic flow
  • BBright system - Utilising larger tubes in the seat tube, down tube and left-hand chainstay, stiffness and pedalling efficiency are increased while keeping weight to a minimum
  • Aero Cable Management - The fork, frame and handlebar hide the brake and gear cables from the wind for improved aerodynamics, with no compromise on performance
  • Shimano's Ultegra Di2 groupset is performance-oriented yet retains durability and reliability
  • Shimano Ultegra disc brakes
  • Novatec R5 Carbon 48mm Disc wheelset - light, strong and stiff

Please note: Specification is as listed and may differ to that pictured. Images are for illustration of colourway only.

Technical Specification

FRAME Cervelo S3 Disc
FORK Cervélo All-Carbon, Tapered S3 Fork for Disc
BOTTOM BRACKET Cervelo BBright Connect 24x90
STEM Cervélo CS28
FRONT BRAKE Shimano Ultegra 8070, Shimano SM-RT800, 160mm
REAR BRAKE Shimano Ultegra 8070, Shimano SM-RT800, 160mm
FRONT DERAILLEUR Shimano Ultegra Di2 8050, 11-speed
REAR DERAILLEUR Shimano Ultegra Di2 8050, 11-speed
SHIFT LEVERS Shimano Ultegra Di2 8070, 11-speed
CHAIN Shimano CN-HG701, 11-speed
CASSETTE Shimano Ultegra CS-R8000, 11-30
CRANKSET Shimano Ultegra 8000
CHAINRINGS Shimano 52/36
FRONT WHEEL Novatec R5 Carbon 48mm Disc
REAR WHEEL Novatec R5 Carbon 48mm Disc
FRONT TYRE Continental Grand Prix SL 25mm
REAR TYRE Continental Grand Prix SL 25mm
SADDLE Prologo Dimension STN

Built, Checked, Tuned and Tested

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.

To see how you build your new bike once you receive it, please see our bike assembly page here.

Please note all bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.

Cervelo S3 Ultegra Di2 8070 Disc Road Bike 2019 Sizing

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