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The Cannondale Synapse Carbon is a truly masterful blend of comfort, stiffness, acceleration and stable agility. A true master of all, the Synapse Carbon will see you through long hours in the saddle with a sprint in reserve.
The Cannondale Synapse Carbon is a truly masterful blend of comfort, stiffness, acceleration and stable agility. A true master of all, the Synapse Carbon will see you through long hours in the saddle with a sprint in reserve.

2015 Cannondale Synapse Carbon : Ultegra DISC

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2015 Cannondale Synapse Carbon : Ultegra DISC




After an incredibly successful 2014 with numerous awards for 'Bike of the Year' from various publications at a multitude of price points, the Cannondale Synapse Carbon returns for 2015 with a stronger line up than ever and with the inclusion of disc versions for those who seek them.

The Cannondale Synapse has become a mainstay of their range, being as it is one of the finest all-round road bikes. The Carbon version is a beautiful blend of thoughtful design and a no-holds-barred approach to technology. A marriage of light weight and rapid acceleration found in many race bikes and a more relaxed position coupled with stable handling and SAVE micro-suspension gives rise to a bike that cuts the harshness out of the long-haul without sacrificing its sporting soul. From the Cobbles of Belgium to Italian Gran Fondos, the Synapse Carbon is for riders seeking a balance of agressive performance and forgiving comfort. 

The Synapse Carbon has undergone a few changes since last season and has been ridden by one of the sport's most entertaining riders, Peter Sagan. The developments made by Cannondale and their pro team have yielded an even more desireable frame particularly if you are looking for something to ride or race over testing roads and higher mileage.

The 2015 Carbon Synapse has a geometry that sits between Elite Race (EVO) and Upright Comfort (Synapse Aluminium) and is what Cannondale have dubbed S.E.R.G or Synapse Endurance Race Geometry. A slightly taller headtube than the SuperSix EVO yet lower than the Synapse Alloy coupled with a slightly slacker head angle and a longer wheelbase give a frame that is ideal for long days in the saddle and that remains confident in terms of handling regardless of road surface.

Like it's predecessor, the 2015 Synapse Carbon utilises SAVE micro -suspension technology whereby certain areas of the frame are flattened to allow a degree of flexion that not only reduces energy-sapping vibration but allows the wheels to track better on uneven surfaces. This year however, Cannondale have developed the idea further: The Helixed shapes of the chain and seat stays in conjunction with carbon lay-up and an offset fork drop-out better allow the frame to dissipate road buzz while allowing greater wheel tracking to give a confident ride whether the rider is seated or out of the saddle. The Synapse carbon features a scalloped seat tube, a smaller diameter post (25.4mm as opposed to earlier seasons' 27.2mm) and a collarless seatclamp. These 3 features combine to allow a seat tube that offers greater flex one way whilst the seatpost flexes further in the opposite direction, again increasing comfort.

You may think that all this flex would lead to a frame or bike that is somewhat inefficient in terms of power delivery. Cannondale have used the same approach with their BallisTec carbon lay-up and design with the Synapse Carbon, as that used with the SuperSix EVO which has the highest stiffness to weight figures in the world. In addition, Cannondale's new Power Pyramid and BB30A design offer maximum stiffness with minimal weight. Look closely at the seattube just above the bottom bracket area and you will see that the Seat tube splits asymmetrically to meet the new, wider 73mm BB30A bottom bracket shell. The asymmetry balances the drive forces created by the rider whilst the BB30A creates a stiffer platform from which to deliver those forces to the wheels. Ultimately this means that the energy you put into the frame is not wasted but instead is transmitted into forward momentum and gives stunning acceleration.

There is an often held belief that more relaxed bikes are sluggish by comparison but this is certainly not the case with the Synapse Carbon. Cannondale are extremely proud of the fact that their bikes have a unique ‘feel’ and they are quick to point out that despite the high levels of comfort proffered by the Synapse Carbon, it is still a race bike at heart with a lively quality that puts a smile on your face when you put it through its paces.

2015 is the year of the disc brake, certainly for the bulk of sportive and endurance bikes and Cannondale have been early adopters of the technology. This is a welcome addition for many on tricky descents and in unpredictable weather conditions as discs lend greater confidence and control to the ride.

There is a good chance that the roads you frequent are far from the glassy smooth surfaces found on the continent but more akin to the brutish surfaces witnessed in the Northern Classics, as such the Synapse Carbon could be for you with its ability to keep you limber and fresh over the rough stuff and ready for the sprint.

Stiff, fast and comfortable. The Cannondale Synapse Carbon is the ideal balance between raw power and all-day rideability, race proven under Peter Sagan with dialled vertical compliance the Synapse Carbon redefines Endurance and will suit riders looking to go harder for longer. 

There are several models in the range including three Hi-Mod versions. This standard mod Ultegra model features Shimano's 6800 11 speed groupset with Cannondale's Hollowgram Si BB30 chainset. Brakes are Shimano's R685 Hydraulic units for superb all weather braking. Mavic's Aksium Disc Wheelset finishes the package 


  • €2,906.41
  • $3,673.75
  • $3,265.85
  • $4,063.76
  • $2,530.15
  • CHF2,415.99
  • kr30,997.84
  • kr337,850.78
  • kr21,621.16
  • kr25,064.27
  • ¥344,372.10
  • Frame

    Synapse, BallisTec Carbon, Di2 ready, SAVE PLUS, BB30A


    Synapse SAVE PLUS, BallisTec Carbon, 1-1/8" to 1-1/4" tapered steerer


    Cannondale HollowGram Si, BB30A, FSA rings, 50/34

    Crank Option 1


    Bottom Bracket

    FSA BB30


    Shimano RS685

    Cog Set

    Shimano Ultegra 6800, 11-32, 11-speed


    Shimano HG600, 11-speed

    Front Derailleur

    Shimano Ultegra 6800, braze-on

    Rear Derailleur

    Shimano Ultegra 6800 GS


    Mavic Aksium One Disc WTS


    Mavic Aksium One Disc, Centerlock


    Mavic Aksion WTS, 700x28c, folding




    Shimano RS685 hydraulic disc, 140/140


    Cannondale C2 Compact, butted 2014 alloy


    Cannondale C2, 6061 Alloy, 31.8, 6 deg.


    Synapse Si, 1-1/4" lower bearing, 25mm top cap

    Brake Levers

    Shimano RS685 hydraulic disc


    Mavic Aksium Disc WTS


    Cannondale Grip Bar Tape w/Gel, 3.5mm


    Fabric Spoon Shallow, Ti Rail

    Seat Post

    Cannondale C2, UD Carbon, 25.4x300mm (48-51) 350mm (54-61)

    Rear Shock



    Technical Information


    • S.E.R.G. Synapse Endurance Race Geometry 
      S.E.R.G. strikes the ideal balance between pure race positioning and upright comfort. Perfect for long days in the saddle and confident handling on all road surfaces.
    • SAVE PLUS - Rear Triangle 
      The helixed shapes of the rear stays work with the fork to absorb bumps for better comfort and control. The seat tube and 25.4mm seatpost flex together for additional comfort in the saddle.
    • SAVE PLUS- Fork 
      The shaped fork blades and offset dropouts let the front wheel track smoothly over rough surfaces. Works as a system with the rear triangle.
    • Power Pyramid/BB30A 
      The seat tube splits asymmetrically to meet a new wider 73mm BB30A bottom bracket, for maximum stiffness with minimal weight.
    • Disc Brakes 
      Frame and fork redesigned with new carbon layup to deliver the power and control of disc brakes while preserving the Synapse ride-feel.
    • BallisTec Carbon 
      Cannondale's carbon construction method uses precisely placed high stiffness fibers over a base of high tensile strength fibers and high impact resins to deliver extreme light weight and perfectly tuned stiffness, without sacrificing strength.
    Sizing Information

    Synapse Geometry

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