Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% 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 £99.99 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.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Cervelo S5 Ultegra Di2 Disc Road Bike 2023
Cervelo's S5 Ultegra Di2 Disc is their fastest, most aerodynamic road bike that has seen many pro-level victories.
The slippery carbon frame has been tweaked in line with the UCI’s slightly more relaxed regulations, with some deeper tube shapes and a reworked cockpit setup to reduce drag by a few more precious grams. This frame is now only compatible with electronic shifting and has sufficient tyre clearance for 34mm rubber within its sculpted shape.
The instantly-recognisable aerodynamic V-Stem and handlebar arrangement is more adjustable and simpler now, with a small drop in weight into the bargain. Its lauded aerodynamic and handling advantages remain impressive and give the S5 an extremely purposeful-looking stance even when standing still.
Cervelo has taken advantage of its in-house Reserve wheel brand and developed a 63/52mm tubeless-ready carbon wheelset that integrates perfectly into the frame. This not only reduces drag when tested in the wind tunnel but also shows improvements when faced with real-world situations where the yaw angle is constantly changing, leading to more stable handling and added speed.
Ultegra Di2 is Shimano’s second-tier, 12-speed, electronic groupset. It gives virtually nothing away to the range-topping Dura-Ace version in terms of performance and offers near-instant shifting and impressive braking control. The system is part wireless, which means that it can be connected to a GPS head unit or a smartphone via Bluetooth, giving access to more information during and after a ride as well as some function customisation.
Highlights
- Cervelo S5 All-Carbon frame with TrueAero tube profiles
- Cervelo All-Carbon fork with external head tube nose section
- Shimano Ultegra hydraulic disc brakes
- Shimano Ultegra Di2 12-speed electronic drivetrain
- Reserve 63/52mm tubeless-ready carbon wheels with Zipp ZR1 ST hubs
- Cervelo ST35 Carbon V-Stem
Technical Specification
| Frame | Cervelo S5 All-Carbon, TrueAero tube profiles, integrated head tube to fork configuration, integrated headset 1” x 1-3/8”, 12x142mm thru-axle |
| Fork | Cervelo All-Carbon, tapered S5 fork, external head tube nose section, 12x100mm thru-axle |
| Headset | FSA IS2 1 x 1-3/8 |
| Bottom Bracket | CeramicSpeed 24 |
| Stem | Cervelo ST35 Carbon V-Stem |
| Handlebar | Cervelo HB14 Carbon |
| Bar Tape | Cervelo bar tape |
| Front Brake | Shimano Ultegra hydraulic disc, with 160mm Shimano MT800 rotor |
| Rear Brake | Shimano Ultegra hydraulic disc, with 160mm Shimano MT800 rotor |
| Brake Levers | Shimano Ultegra R8170 hydraulic |
| Front Derailleur | Shimano Ultegra Di2 8150 |
| Rear Derailleur | Shimano Ultegra Di2 8150, 12-speed |
| Shift Levers | Shimano Ultegra Di2 8170, 12-speed |
| Chain | Shimano M8100, 12-speed |
| Cassette | Shimano Ultegra R8100, 11-30, 12-speed |
| Crankset | Shimano Ultegra R8100 52/36t |
| Front Wheel | Reserve 52mm, Zipp ZR1 ST, 24 hole, 25.4mm internal rim width, Center Lock disc interface, tubeless-ready tyre compatible |
| Rear Wheel | Reserve 63mm, Zipp ZR1 ST, 24 hole, 24.4mm internal rim width, Center Lock disc interface, tubeless-ready tyre compatible |
| Front Tyre | Vittoria Corsa TLR G, 700x28mm, tubeless-ready clincher |
| Rear Tyre | Vittoria Corsa TLR G, 700x28mm, tubeless-ready clincher |
| Saddle | Selle Italia Novus Boost EVO Superflow |
| Seatpost | Cervelo SP20 Carbon Aero Post |
| Pedals | Available to be purchased separately |
| Accessories | Cervelo Handlebar Front Computer/Accessory Mount, Cervelo Rear Accessory Mount |
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. 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.
Cervelo S5 Ultegra Di2 Disc Road Bike Sizing
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".