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Cervelo S5 Ultegra - Rim Brake

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Product Description



The new S5 has revolutionized the aero road segment – again. It combines many incremental improvements across the frame to deliver one huge improvement to you: more speed. The model that BikeRadar calls “spectacular in terms of raw aggression and savage speed” now offers increased stiffness, race-ready geometry and improved ride quality to produce our fastest road bike ever.


For when you want a game-changing advantage, no matter what challenges the road throws at you. Over 100 unique frame iterations were built in layup development alone to perfect the new S5. Our road-tested aero features make the S5 faster in the real world, not just in the wind tunnel.


This asymmetrical 79mm bottom-bracket standard yields stiffer and lighter frames and crank systems.

Built For Bottles

Minimizes the aero penalty by partly integrating the water bottle into the downtube airfoil.

Dropped Down Tube

Reduces drag by treating the front wheel and frame as one aerodynamic shape.

Extended Seat Tube Cutout

A close-fitting curve in the seat-tube’s trailing edge significantly improves aerodynamics by shielding the leading edge and top of the rear wheel.

Future-Proof Cable Management

Ensures your frame is compatible with all current and future derailleur and brake systems.

Carbon Dropouts

Tough, compression-molded dropouts save weight with no sacrifice in strength compared to traditional metal dropouts.

Evolved Steerer Design

The fork steerer’s diameter has a noticeable effect on a bike’s handling. Evolved steerer design applies the diameters and taper designs that best suit each model.

Shielding Seat Stays

Hide the rear brake callipers from the wind, not from the mechanic.

Reduced-Friction BB Guide

Significantly reduces cable friction in the bottom bracket, which means smoother shifting, easier setup and longer service intervals.


Speed meets sophistication: the S5 is engineered to ride and handle like a pure aero road race machine. Compared to the previous S5, we've given you a premium advantage you can feel with each pedal stroke.

Category-defining aero engineering

The new S5 perfects aerodynamic performance advantage with no compromise in weight — no small challenge given the high standards of the previous-generation S5. We also succeeded in significantly increasing torsional stiffness, a key factor in handling, to permit a more aggressive riding position. Our emphasis on systems engineering and structural efficiency maximizes stiffness while minimizing weight, and we’ve worked to perfect new manufacturing techniques to achieve tighter tolerances and improved compaction.


Out-of-the-box speed means that all facets of the bike — components included — maximize aero advantage. Our Dropped Downtube and Shielding Seatstays are designed to minimize aero drag at precise locations on the frame using a systems approach. Cervélo’s new All-Carbon Aero Handlebar saves 4.4 Watts over a standard round bar, and is compatible with standard 31.8mm stems.


The new S5 offers a 6% increase in bottom bracket stiffness, giving you a high degree of connection to the road and a feel of efficiency with each pedal stroke. A 35% increase in headtube torsional stiffness and 17% increase in lateral fork stiffness offer increased confidence in cornering and overall handling.


You’ve probably never relished the climbs on an aero bike before. An aero bike that also offers category-leading lightweight performance is rare, but the S5 delivers. Our lightweight engineering refuses to compromise the airfoil shapes that give the S Series its distinctive design — and more distinctive performance — all without adding unnecessary weight.


Out-of-the-box speed comes from industry-leading components and race geometry paired with classic road handling. This revised fit maintains the same reach distance as in the previous-generation S5.

The most advanced frame demands the most advanced components: From the ultimate Team Dimension Data Edition race machine with new Shimano 9150 with Enve components and Rotor 2INpower, to the revolutionary Sram eTAP, or the precise Ultegra Di2 and new Shimano Dura Ace, the S5 truly delivers out-of-the-box speed.

This configuration is built on Shimano's latest version of their Ultegra components, the Ultegra 8000 11-speed .system

See below for more details.

  • Product Specs

    2018 Cervélo S5 with Ultegra 8000, rim brakes
    Fork Cervélo All-Carbon, Tapered S5 Fork
    Headset FSA IS2 1-1/8 x 1-3/8”
    Seatpost Cervélo Carbon, Aero SP17
    Shifters Shimano Ultegra 8000, 11 spd
    Rear Derailleur Shimano Ultegra 8000, 11 spd
    Front Derailleur Shimano Ultegra 8000, 11 spd
    Brake Calipers Shimano Ultegra 8000
    Crankset Shimano Ultegra 8000 52/36
    Bottom Bracket BBB Bottomfit BBO-72 PF-30 threaded
    Handlebar Cervélo, Aero AB04
    Stem Cervélo Uktra Light Alloy Stem
    Saddle fi'zi:k Antares R7
    Cassette Shimano Ultegra CS-8000, 11-28 11 spd
    Chain Shimano HG701, 11 spd
    Wheels Mavic Cosmic Elite
    Tires Mavic Cosmic, 700x23c

    Bikes may not be equipped exactly as shown. Specifications subject to change by manufacturer without notice.

    sizechart: Cervelo Geometry table
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