Cervelo P-Series 105 Triathlon Bike 2025
Meet the Cervélo P-Series, a game-changing triathlon bike that blends the cutting-edge technology of the acclaimed P5 TT bike with features specifically designed for triathletes. Retaining the P5’s aerodynamic edge and rigorous World Tour testing, the P-Series enhances your triathlon experience with several key upgrades. It features a fork with a d-shaped steerer tube and a round stem interface, offering customizable basebar and extension options to suit your precise fit needs. The bike also introduces Cervélo’s first internal frame storage, designed to securely hold essentials like a tube, multi-tool, and CO2 canisters, while freeing up space for a rear hydration mount. With expanded wheel and tire clearance, reduced aerodynamic drag, and streamlined cable routing, the P-Series is crafted to optimize your performance from T1 to T2.
Technical Specification
| Fork | Cervélo All-Carbon, Tapered P Fork |
| Headset | FSA IS2 1-1/4 x 1-3/8 |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Rear Wheel | Vision Team i23 Disc, 23mm IW, J-Bend, 12x142mm, HG freehub, 6 bolt, tubeless compatible |
| Front Wheel | Vision Team i23 Disc, 23mm IW, J-Bend, 12x100mm, 6 bolt, tubeless compatible |
| Tire | Zaffiro Pro V G2.0 700x28c |
| Crankset | Shimano 105 R7100, 52/36T, 12 Speed |
| Bottom Bracket | FSA, BBright thread together, 24mm spindle |
| Chain | Shimano M7100, 12 speed |
| Front Derailleur | Shimano 105, R7100, 12 speed |
| Rear Derailleur | Shimano 105, R7100, 12 speed |
| Cassette | Shimano 105, 11-34, 12 Speed |
| Shifter | Shimano Dura Ace, R9160 |
| Basebar/Extension | Zipp Vuka Alumina Basebar and Extensions |
| Stem | Cervélo ST36 Alloy |
| Brake Calipers | Riderever Triva |
| Front Brake | Riderever Triva Carbon |
| Rear Brake | Riderever Triva Carbon |
| Saddle | Cervélo Tri Saddle |
| Seatpost | Cervélo SP23 Carbon |
| Brake Rotors | Jagwire RS04 6-Bolt |
| Accessories | Smartpak 400, Rear Hydration Mount, Downtube Storage Door with two storage packs |
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 P-Series 105 Triathlon Bike 2025 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".
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.