Cervelo S5 Ultegra Di2 Road Bike 2026

£7,999.00

£9,450.00

Save 15%

51cm

Delivery

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Collect in Store

Cycle to Work – Save up to 42%

Spread the cost of your new bike and save up to 42% through the Cycle to Work scheme. We accept all major providers including Cyclescheme, Green Commute Initiative, Bike2Work and more. Check with your employer for eligibility.

Free Delivery on all bikes

Complimentary standard delivery on all bikes to UK mainland addresses. Orders typically arrive within 2–5 working days. A signature is required on delivery. When you receive your bike all you'll need to do is unpack it, attach your pedals, turn the handlebars and ride.

Premier Delivery

Upgrade to Premier Delivery at checkout for a nominated day, extended assembly and in-home handover by a trained technician. Available on eligible bikes across UK mainland.

Built, checked, tuned & 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.

Pedals & accessories

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

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Product Details

Speed redefined. The Cervelo S5 Ultegra Di2 Road Bike has evolved to be even more aerodynamic, slicing through the wind with refined front-end shaping and the sleek integration of asymmetric seat tube and rear wheel profiles. The result? A gain of 6.3 watts over its predecessor - extra power in reserve for launching a breakaway or delivering a decisive sprint finish. It’s not just quicker, it’s lighter too, shedding 124 grams for added efficiency when the gradient kicks up. While it’s faster and leaner, the S5 still delivers the precise handling, stability, and razor-sharp responsiveness that riders love. This is the S5, reimagined for those who love speed and ride on the edge.

Cervelo x Reserve 57/64 Turbulent Aero

Co-developed by Cervelo and Reserve, the 57/64 Turbulent Aero wheelset has been tuned to work perfectly with this latest iteration of the S5 frame and forks. The asymmetry of the rear wheel matches the seat tube, ensuring smooth and efficient airflow over both. Meanwhile, the added depth of the front rim helps smooth airflow over the wheel in high yaw scenarios. Some 3 watts faster than its predecessor wheelset, the 57/64 still tips the scales at the same weight.

Cervelo HB19 Carbon one-piece cockpit

The distinctive V-shaped bar and stem remain, but it's now a one-piece setup. The “Plus-Four” concept gives a handlebar design where the width at the hoods is 4cm narrower than at the drops - for example, 38cm at the hoods and 42cm at the drops. This innovative setup promotes a more aerodynamic riding position when your hands are on the hoods, while still offering enhanced control and stability in the drops for sprinting and descending. All handlebar sizes comply fully with UCI regulations, including the most recent updates

HB19 Carbon one-piece cockpit sizing:

Frame size 48cm: Bar width: 36cm /Stem length: 80mm
Frame size 51cm: Bar width: 38cm /Stem length: 90mm
Frame size 54cm: Bar width: 40cm /Stem length: 100mm
Frame size 56cm: Bar width: 40cm /Stem length: 100mm
Frame size 58cm: Bar width: 40cm /Stem length: 110mm
Frame size 61cm: Bar width: 40cm /Stem length: 120mm

Features

Frame: Cervelo S5 All-Carbon, TrueAero tube profiles, integrated head tube to fork configuration, integrated headset 1” x 1-3/8”, 12x142mm ( M12x1.0mm, 169mm length thru-axle)
Fork: Cervelo All-Carbon, tapered Bayonet S5 fork, external head tube nose section, 12x100mm thru-axle (M12x1.5mm, 122mm length)
Headset: FSA SL IS2 1-1/8, 36° x 45° / 1-3/8, 36° x 45°
Bottom Bracket: FSA, BBright thread together for 24mm spindle
Handlebar and Stem: Cervélo HB19 Carbon one-piece cockpit
Bar Tape: Cervelo bar tape
Front Brake: Shimano Ultegra hydraulic disc, with 160mm Shimano CL800 Centerlock Disc
Rear Brake: Shimano Ultegra hydraulic disc, with 160mm Shimano CL800 Centerlock Disc
Brake and Shift Levers: Shimano Ultegra, R8170
Front Derailleur: Shimano Ultegra, R8150
Rear Derailleur: Shimano Ultegra, R8150
Chain: Shimano M8100
Cassette: Shimano Ultegra, R8100, 11-34T, 12-Speed
Crankset: Shimano Ultegra, R8100, 52/36T
Front Wheel: Reserve 57TA, DT Swiss 180 DICUT, 12x100mm, 24H, centerlock, tube less compatible
Rear Wheel: Reserve 64TA, DT Swiss 180 DICUT, 12x142mm, HG freehub 24H, center lock, tubeless compatible
Front Tyre: Vittoria Corsa Pro TLR G2.0 700x29mm
Rear Tyre: Vittoria Corsa Pro TLR G2.0 700x29mm
Saddle: Selle Italia NOVUS BOOST EVO SuperFlow Ti
Seatpost: Cervélo SP34 Carbon
Powermeter: 4iiii Precision Pro, GEN3+ Dual Sided
Pedals: Available to be purchased separately
Accessories: Cervélo Front Computer/Accessory Mount 887, Cervélo Rear Accessory Mount

Highlights

Cervelo S5 All-Carbon frame with deeper chord-length profiles on headtube and fork - claimed 6.3 watts faster than previous S5 
Weight savings from the frame, seatpost, and one-piece bar - system weight is down 124g
Shimano Ultegra Di2 12-speed electronic drivetrain and Ultegra hydraulic disc brakes
Reserve Turbulent Aero 57/64 mm tubeless-ready carbon wheels designed specifically for the S5 frame system
Geometry optimised for 29mm wide road tyres
Cervelo HB19 one-piece Carbon V-Stem

Specifications