Colnago V4 Racing Bike – Shimano Ultegra Di2 12v Disc
The Colnago V4 represents the perfect balance between high performance and comfort, designed for demanding cyclists seeking a responsive and aerodynamic bike.
Main Features
Advanced Aerodynamics: Designed with aerodynamic studies inspired by the V4Rs model to maximize speed.
Shimano Di2 Technology: Precise and reliable electronic shifting for quick and effortless gear changes.
High-Quality Components: Shimano Ultegra crankset, hydraulic disc brakes for superior performance.
Elegant and Refined Design: Clean and modern lines reflecting Colnago heritage.
Comfort and Control: Carbon handlebar and Selle Italia saddle for comfortable riding even on long distances.
Technical Specifications
Frame and Fork
Frame: High-performance carbon monocoque, designed for maximum stiffness and lightness.
Fork: Carbon for disc brakes, with integrated cables and 1"1/8 section.
Headset: ACROS ss 1"1/4 with sealed bearings 35x47x7.
Seatpost: Carbon with 0.15° offset, "D-Shape" section for improved comfort.
Thru Axles: 12 mm, length 100 mm (front) - 142 mm (rear).
Drivetrain
Shifter: Shimano Ultegra R8170 Di2 12 speed.
Front Derailleur: Shimano FD-R8150.
Rear Derailleur: Shimano Shadow RD-R8150.
Chain: Shimano CN-M8100 12V.
Crankset: Shimano Ultegra 52-36T.
Cassette: Shimano Ultegra 11-30T.
Bottom Bracket: T47.
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Crank Length:
Brakes
Brakes: Shimano Ultegra R8170, 160 mm front / 140 mm rear.
Brake Levers: Shimano Ultegra ST-R8170.
Brake Calipers: Shimano Ultegra BR-R8170.
Discs: RT-CL800.
Wheels and Tires
Components
Saddle: Selle Italia Novus Boost EVO or Prologo Scratch M5.
Handlebar: Colnago R41 carbon.
Handlebar Stem: Colnago SR10.
Handlebar Tape: Colnago Grip Black.
Bottle Cage: Colnago Matt Black (1x)
Note Well
Technical specifications may change without notice depending on component availability.
Product images are for illustrative purposes only and may not perfectly reflect the described features.
The Colnago V4 with Shimano Ultegra Di2 12-speed groupset is the ideal choice for cyclists seeking a high-performance, lightweight, and aerodynamic bicycle. Perfect for intense training and competitions, it offers a superior riding experience thanks to the combination of high-quality components and advanced design.
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.
