Cervelo S5 Dura-Ace Di2 Bike

$14,350⁰⁰

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Cervelo | SKU: 0L0S5GDI1C48 | Option: Five Black, 48cm

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Cervelo S5 Dura-Ace Di2 Bike Info

The Cervelo S5 Dura-Ace Di2 Bike is what happens when a brand commits fully to aerodynamics and then keeps refining. The S5 isn't the lightest road bike Cervelo makes — that's the R5's job. The S5 exists to slice through the air faster than anything else at this price, and it does so with a precision that has made it the bike of choice for some of the best riders in professional cycling. Jonas Vingegaard and Wout van Aert have won races on it. Simon Yates has won races on it. The current generation is 6.3 watts faster than its predecessor while simultaneously shedding 124 grams — an improvement in two dimensions that doesn't happen by accident.

The aerodynamic gains are concentrated at the front end. Cervelo went significantly deeper on the fork legs and refined the head tube profile, producing smoother airflow into and around the frameset. The asymmetric seat tube profile integrates with the rear wheel as a cohesive system — air coming off the frame feeds cleanly into the wheel, not around it. This is not incidental. The Reserve 57|64 wheelset was co-developed with Reserve specifically for the S5's geometry, with the rear wheel's asymmetric profile engineered to match the seat tube cutout exactly. Those wheels are 3 watts faster than the previous Reserve 52|63 pairing while maintaining equivalent weight. Every aero gain on this bike compounds on the one before it.

The HB19 one-piece carbon bar and stem uses Cervelo's "Plus-Four" concept: the hood position is 4 centimeters narrower than the drops. This allows riders to hold a more aerodynamic position on the hoods — where most riding actually happens — without sacrificing stability during sprints or technical descents. Nine bar and stem size combinations are available, so achieving an aerodynamically optimized fit doesn't require compromise. The frame accepts those nine configurations at no additional cost when purchased through an authorized retailer, and the design is fully UCI-legal.

The drivetrain is Shimano Dura-Ace Di2 throughout — R9250 front and rear derailleurs with R9270 hydraulic disc levers and calipers. The crankset is Shimano Dura-Ace R9200 with a 54/40T chainring setup and a 4iiii Precision Pro GEN3+ dual-sided power meter installed from the factory. You are getting left and right power data without an aftermarket installation, and the chainring spec reflects what this bike is built for: top-end speed on flat and rolling terrain. The cassette runs 11–34T in Dura-Ace R9200 12-speed, giving enough range for variable terrain while keeping the gearing optimized for the kinds of courses where the S5 belongs. The bottom bracket is a CeramicSpeed SL in BBright spec — one of the highest-performing BB options in cycling, and it comes standard.

Specs at a Glance

Frame: Cervelo all-carbon S5 aero road frame
Fork: Cervelo All-Carbon Bayonet S5 Fork
Headset: FSA SL IS2, 1-1/8 x 1-3/8
Bottom Bracket: CeramicSpeed SL BBright, 24mm spindle
Front Derailleur: Shimano Dura-Ace Di2 R9250
Rear Derailleur: Shimano Dura-Ace Di2 R9250
Shifters / Levers: Shimano Dura-Ace Di2 R9270
Crankset: Shimano Dura-Ace R9200, 54/40T, with 4iiii Precision Pro GEN3+ dual-sided power meter
Cassette: Shimano Dura-Ace R9200, 11–34T, 12-speed
Chain: Shimano M9100, 12-speed
Brake Calipers: Shimano Dura-Ace R9270 hydraulic disc
Rotors: Shimano CL900 Centerlock
Wheel — Front: Reserve 57TA, DT Swiss 180 hub, tubeless-compatible, 12x100mm
Wheel — Rear: Reserve 64TA, DT Swiss 180 hub, tubeless-compatible, 12x142mm
Tires: Vittoria Corsa Pro TLR G2.0, 700x29
Cockpit: Cervelo HB19 Carbon one-piece bar/stem, Plus-Four design
Seatpost: Cervelo SP34 Carbon
Saddle: Selle Italia NOVUS BOOST EVO SuperFlow Carbon
Chainstay Length: 405mm (all sizes)
Sizes: 48, 51, 54, 56, 58, 61cm
Colors: Five Black, Lithium

Design Benefits

6.3 watts faster than the previous S5: A measurable, independently validated improvement — not a marketing estimate. The front-end redesign and deeper fork legs are where the bulk of those gains come from.
Reserve 57|64 co-developed for this frame: The rear wheel's asymmetric profile was engineered to match the S5's seat tube cutout exactly, creating a unified aero system. The result is 3 watts faster than the previous Reserve wheelset.
Plus-Four HB19 cockpit: Hoods 4cm narrower than drops means a more aerodynamic position wherever your hands actually are, with nine size configurations to dial in the fit precisely.
Dual-sided power meter from the factory: The 4iiii Precision Pro GEN3+ measures both left and right output, giving complete power data without an aftermarket installation.
CeramicSpeed BBright: One of the most efficient bearing systems in road cycling, spec'd from the factory on a $14,350 bike where it belongs.

Final Take

The Cervelo S5 Dura-Ace Di2 is a purpose-built aero road bike at the top of the category — and a complete one. Dual-sided power meter, ceramic bottom bracket, co-developed wheels, and a UCI-legal integrated cockpit that actually fits are all included. For riders who spend time on fast, flat courses and want the most aerodynamically optimized setup available at this price point, the S5 is the benchmark.

Cervelo S5 Dura-Ace Di2 Bike - Specifications

Frame Material:

Carbon

Fork:

Cervelo All-Carbon Bayonet S5 Fork

Headset:

FSA SL IS2 1-1/8, 36 x 45 / 1-3/8, 36 x 45

Seatpost:

Cervelo SP34 Carbon

Front Derailleur:

Shimano Dura-Ace Di2 R9250

Rear Derailleur:

Shimano Dura-Ace Di2 R9250

Crankset:

Shimano Dura-Ace R9200 w/4iiii Precision Pro GEN3+ Dual Sided Power Meter

Chainrings:

54/40

Bottom Bracket:

CeramicSpeed SL BBright for 24mm spindle

Brake Calipers:

Shimano Dura-Ace R9270 Hydraulic Disc

Rotors:

Shimano CL900 Centerlock

Shifters / Levers:

Shimano Dura-Ace Di2 R9270

Cassette:

Shimano Dura-Ace R9200 12-speed 11-34

Chain:

Shimano M9100 12-speed

Wheel - Front:

Reserve 57TA / DT Swiss 180 / Tubeless Compatible / 12x100mm

Wheel - Rear:

Reserve 64TA / DT Swiss 180 / Tubeless Compatible / 12x142mm

Stem:

Cervelo HB19 Carbon

Handlebar:

Cervelo HB19 Carbon

Saddle:

Selle Italia NOVUS BOOST EVO SuperFlow Carbon

Tires:

Vittoria Corsa Pro TLR G2.0 700x29

Pedals:

Not Included

*Specifications are subject to change.

Cervelo S5 Dura-Ace Di2 Bike Geometry

Size:

C. Top Tube Length

520

535

550

565

581

595

D. Head Tube Length

104

125

152

173

E. Chain Stay Length

405

F. BB Drop

74.5

69.5

G. Seat Tube Angle

H. Head Tube Angle

73.5

I. Stand Over Height

712

734

758

781

804

822

J. Wheel Size

700c

K. Stack

496

519

542

565

588

608

L. Reach

367

376

384

392

401

409

Stem Length

80mm

90mm

100mm

110mm

120mm

Bar Width

36cm

38cm

40cm

M. Crank Length

165mm

170mm

172.5mm

The RA Perspective

The S5 is one of those bikes that changes how people think about aero road bikes. There's a misconception that aero means heavy, or stiff, or that you have to sacrifice handling for speed. The S5 makes that argument hard to sustain.

What I want people to understand about this specific build is how complete it is. The 4iiii dual-sided power meter is installed at the factory — not an add-on, not a left-only unit, but a full dual-sided setup that's calibrated and ready. The CeramicSpeed bottom bracket is in there from day one. The Reserve 57|64 wheelset was co-developed with Cervelo specifically for this frame, not adapted from an existing product. When you add up what it would cost to source all of that separately and install it correctly, $14,350 becomes a much more interesting number.

The HB19 cockpit is worth spending time with when you come in for a fit. The Plus-Four concept — hoods 4cm narrower than drops — sounds like a small detail, but it genuinely changes where your body sits when you're on the hoods. We have seen customers come in expecting to feel cramped or hunched and walk out understanding why Cervelo made this choice. Nine size combinations means we can almost always find the right configuration without compromise.

The S5 is at its best on fast group rides, criteriums, and any stage where the road is flat and the pace is high. It's been proven at the top level of the sport — van Aert and Vingegaard have won on this platform. If you're building toward events where aerodynamics matter and you want a setup that's dialed from the moment you unbox it, this is the one.

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