Description
Cervelo P5 Ultegra Di2 Triathlon Bike
If you're a triathlete or time triallist chasing every marginal gain in pursuit of faster bike splits, the Cervélo P5 Ultegra Di2 Triathlon Bike is your ultimate weapon against the clock. Designed with a singular focus, delivering maximum speed from start to finish, the P5 is a proven race machine, equally at home in Kona or in a Tour de France stage-defining time trial. Every element has been fine-tuned through aerodynamic innovation and real-world race demands, making it the perfect choice for riders who are serious about saving seconds where it matters most.
What sets the P5 apart is its powerful combination of aero performance, precision fit, and endurance-ready design. Fitted with Reserve’s 77/88 Turbulent Aero Wheelset and 29mm Vittoria Corsa Pro tyres, the bike delivers outstanding aerodynamics and reduced rolling resistance. The lowered basebar reduces drag, while frame-size-specific adjustable extensions provide a refined, aggressive yet comfortable position. Despite its uncompromising race pedigree, the P5 features fastback seatstays to add subtle compliance, keeping you fresher for the run or stronger through the TT finish line. With integrated storage designed for efficient fuelling, this is a race-day bike that goes beyond speed, it's built for performance that lasts.
Technical Specification
| Frame | P5 all carbon |
| Fork | Cervélo All-Carbon, Bayonet P5 Fork |
| Headset | FSA IS2 1-1/8, 36° x 45° / 1-1/4, 45° x 45° |
| Front Axle | Cervélo Aero Thru Axle Front, M12x1.5mm, 127mm length |
| Rear Axle | Cervélo Aero Thru Axle Rear, M12x1.5mm, 170.5mm length |
| Front Wheel | Reserve 77TA, DT Swiss 240, 12x100mm, 24H, centerlock, tubeless compatible |
| Rear Wheel | Reserve 88TA, DT Swiss 240, 12x142mm, HG freehub 24H, centerlock, tubeless compatible |
| Tyres | Vittoria Corsa Pro TLR G2.0, 700x29c |
| Crankset | Shimano Ultegra, R8100, 52/36T |
| Powermeter | 4iiii Precision Pro, GEN3+ Dual Sided |
| Bottom Bracket | FSA, BBright thread together for 24mm spindle |
| Chain | Shimano M8100 |
| Shifters/Brake | Shimano Dura-Ace, R9180 |
| Derailleurs | Shimano Ultegra, R8150 |
| Cassette | Shimano Ultegra, R8100, 11-30T, 12-Speed |
| Bar End/Satellite | Shimano Dura-Ace, SW-R9160 |
| Basebar | Cervélo HB15 Carbon |
| Extension | Profile Design 52ASC Extension Assembly |
| Riser | Cervélo EX14 Carbon |
| Saddle | Selle Italia WATT Superflow Ti316 |
| Seatpost | Cervélo SP23 Carbon |
| Brake Rotors | Shimano CL800 Centerlock |
| Pedals | Available to be purchased separately |
| Accessories | Cervélo Rear Hydration Mount, Cervélo P5 Stem Storage, Cervélo Smartpak Top Tube Storage Bag 400, Cervélo Aero Water Bottle w/ Cage |
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.
Size Guide
Cervelo P5 Ultegra Di2 Triathlon Bike 2026 Sizing
Delivery & Returns
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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 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 £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.
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