Cervélo S5 Ultegra Di2 Road Bike 2025
The Cervélo S5, built for speed, has proven its dominance with cyclists like Wout van Aert, Marianne Vos, and Christophe LaPorte. In the 2022 Tour de France, Wout set a record with a Points Classification score of 480, beating his closest rival by 194 points, underscoring the S5's superior performance. The new S5 reduces drag by 65 grams, increases frame surface area, and decreases overall weight. Optimized frame sections comply with UCI regulations, while a refined V-stem and redesigned fork streamline the front end. Additionally, a groundbreaking wheel design co-developed with Reserve enhances stability and reduces drag in turbulent conditions.
Technical Specification
| Fork | Cervélo All-Carbon, Bayonet S5 Fork |
| Headset | FSA IS2 1-1/8 x 1-3/8 |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Rear Wheel | Reserve 63, 24.4mm IW, Zipp ZR1 ST, 12x142mm, HG freehub, 24h, centerlock, tubeless compatible |
| Front Wheel | Reserve 52, 25.4 IW, Zipp ZR1 ST, 24H, centerlock, tubeless compatible |
| Tire | Corsa Pro TLR blk-blk G2.0 OEM 700x29c |
| Crankset | Shimano Ultegra R8100, 52/36T, 12 Speed |
| Bottom Bracket | Ceramic Speed, BBright for 24mm spindle |
| Chain | Shimano M8100, 12 speed |
| Front Derailleur | Shimano Ultegra, R8150, 12 speed |
| Rear Derailleur | Shimano Ultegra, R8150, 12 speed |
| Cassette | Shimano Ultegra 11-34, 12 Speed |
| Left Shifter/Brake | Shimano Ultegra, R8170, 12 speed |
| Right Shifter/Brake | Shimano Ultegra, R8170, 12 speed |
| Handlebar | Cervélo HB14 Carbon |
| Stem | Cervélo ST35 Carbon |
| Brake Calipers | Shimano Ultegra |
| Saddle | Selle Italia NOVUS BOOST EVO SuperFlow Ti |
| Seatpost | Cervélo SP20 Carbon |
| Brake Rotors | Shimano CL800 Centerlock |
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 Road Bike 2025 Sizing
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Why buy your bike from Sigma Sports?
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