Cannondale Synapse Carbon 4 bicycle – Chalk
Endurance road bike with Shimano 105 Di2 electronic drivetrain and carbon frame
Discover the Cannondale Synapse Carbon 4, the endurance road bike designed to offer the perfect balance of comfort, speed, and versatility. Built for longer road rides, yet agile for daily pedaling, this bike features a Shimano 105 Di2 12-speed electronic drivetrain, DT Swiss R470 rims, and wide Vittoria Rubino Pro IV 32c tires, for a smooth, stable, and high-performance riding experience.
Ideal for:
Strengths of the Synapse Carbon 4:
Lightweight and responsive carbon frame with endurance geometry and Proportional Response technology
Shimano 105 Di2 wireless transmission: precise and effortless 2x12 electronic shifting
Cannondale C1 Aero carbon seatpost for maximum efficiency and comfort
Integrated StashPort system in the down tube with included StashBag
Wide tire clearance and fender compatibility: ready for any condition
Fizik Vento Argo R5 saddle for ergonomic comfort even on long rides
Performance for the real world
With a refined design, wind tunnel optimized, and a carbon construction that ensures an excellent stiffness-to-weight ratio, the Synapse Carbon 4 has been tested in the most extreme conditions. It’s no coincidence it was Lachlan Morton's choice to break the Australian record.
Superior comfort and perfect adaptability
The carbon lay-up has been improved to offer an 18% increase in flexibility compared to the previous model, absorbing vibrations from rough roads. Thanks to Proportional Response technology, each frame size is optimized to deliver consistent, tailored performance for every rider.
Ready for anything, wherever you go
The StashPort door with integrated StashBag lets you carry essentials securely and discreetly. The wide tire clearance and fender compatibility give you the freedom to explore longer, without compromise.
Technical Specifications
Details
Frame Kit
Frame: Synapse Carbon, Proportional Response, integrated cable routing, StashPort, 12x142mm, UDH, BSA threaded BB 68mm, flat mount brakes, SmartSense Gen 2.0 and fender compatible
Fork: Synapse Carbon, 12x100mm thru-axle, internal cable routing, 55mm offset, fender compatible
Headset: Integrated 1-1/8" - 1-1/2"
Drivetrain
Rear derailleur: Shimano 105 Di2 7150
Front derailleur: Shimano 105 Di2 7150, braze-on
Shift levers: Shimano 105 Di2 R7170, wireless, 12v
Crankset: Shimano 105 7100, 50/34, BSA
Cassette: Shimano 105 7100, 11-34, 12v
Chain: Shimano 105 7100
Bottom bracket: Shimano BSA 68
Brakes
Wheels
Rims: DT Swiss R470 DB, 28 holes
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Hubs:
Front: Shimano RS470, 12x100mm, centerlock
Rear: Shimano RS470, 12x142mm, centerlock
Spokes: Stainless steel 14g
Tires: Vittoria Rubino Pro IV, 700x32c
Wheel size: 700c
Components
Handlebar: Vision Trimax Aero Alloy
Handlebar stem: Cannondale C1 Conceal, 31.8mm, -6°
Handlebar tape: Cannondale Bar Tape 3.5mm
Saddle: Fizik Vento Argo X5, 140mm
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Seatpost: Cannondale C1 Aero 27 Carbon, SmartSense compatible
Connectivity
Included Accessories
Note Well
Technical specifications may change without notice depending on component availability.
Product images are for illustrative purposes only and may not exactly reflect the described features.
The Cannondale Synapse Carbon 4 is the ideal bike for cyclists looking for a high-performance endurance road bike, equipped with advanced electronic technology, perfect for long rides, weekly outings, and comfort on any terrain.
Do you want to receive your bike ready for use? Don't forget to add the bike assembly service at the time of purchase! Discover all the details here: Francesconi bike assembly
A Complete Guide to Bike Sizes
Foreword: Not all bike sizes are the same
Each type of bike has a specific frame and often uses a different size scale. For example, a road bike with a 54cm frame might be considered a medium size by one brand, but a large by another.
Bicycle adjustment margins
Some types of bikes, like gravel bikes, offer a wide range of adjustments, adapting to different body types. Other models, however, have limitations in this regard. This is an important aspect to consider.
How to use size charts
We've created a simple guide to help you find the right bike size:
- Check out our size charts for each bike type.
- Learn more with specific tips to help you make the right choice.
Size Charts: Find Your Perfect Bike
Gravel and road bikes
Sizes are based on the length of the top tube (in cm), which determines the reach of the bike.
| Cut
|
Recommended height
|
Horizontal tube length
|
| XS |
Up to 157 cm |
48-50 cm |
| S |
157-167 cm |
50-53 cm |
| M |
168-178 cm |
53-56 cm |
| THE |
178-185 cm |
56-58 cm |
| XL |
Over 185cm |
58-62 cm |
For gravel, measurements may vary slightly due to different geometries, but remain similar.
Mountain bike
MTBs are measured in inches, based on the seat tube.
| Cut
|
Recommended height
|
Size (in inches)
|
| XS |
Up to 157 cm |
14"-16" |
| S |
157-167 cm |
15"-17" |
| M |
168-178 cm |
16"-19" |
| THE |
178-185 cm |
18"-20" |
| XL |
Over 185cm |
20"-23" |
Sizes also vary depending on the type of MTB: full-suspension , hardtail or fat bike .
Children's bikes
The size depends on the size of the wheels, often associated with age:
| Age
|
Wheel Size
|
| 1-3 years |
12" |
| 2-4 years |
14" |
| 4-6 years |
16" |
| 5-8 years |
20" |
| 8-10 years |
24" |
| Over 10 years |
26"/27.5" |
What to do with half measures?
If you are between two sizes:
-
Comfort : Choose the larger size.
-
Performance : Go for the smaller size.
Final tips for choosing
-
Consult the manufacturer's instructions : Always check the brand's guidelines.
-
Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
-
Test the bike : If possible, test the model you intend to purchase.
