Colnago V4 Shimano 105 Di2 12v – High-Performance Carbon Racing Bike
The soul of the V4Rs, with a more accessible setup
The Colnago V4 with Shimano 105 Di2 12-speed is the perfect choice for those looking for a high-performance racing bike with excellent value for money. Thanks to sharing DNA with the V4Rs, this model inherits the same technical, aerodynamic, and design solutions, maintaining a more competitive price. An ideal mix of stiffness, responsiveness, and comfort, designed for those who want to improve their performance without giving up Colnago style.
The carbon monocoque frame was developed with the same care in carbon layup and aerodynamic research as the top-of-the-line model. The balanced geometry and fully integrated cable routing make the V4 not only elegant but also efficient on every type of route.
Technical Specifications – Colnago V4 Shimano 105 Di2 12v
Frame Kit
Frame: Carbon monocoque
Fork: Carbon, designed for disc brakes, integrated cable routing, 1"1/8 section
Steering series: ACROS SS with 1"1/4 3547 bearings
Seatpost: Carbon, 0.15 offset, "D-Shape" section
Thru axles: 12 mm – Front 100 mm / Rear 142 mm
Drivetrain – Shimano 105 Di2 12v
Shifter: Shimano 105 R7170 Di2 Disc
Front derailleur: Shimano FD-R7150
Rear derailleur: Shimano Shadow RD-R7150
Chain: Shimano CN-M7100 12 speed
Crankset: Shimano 105 50-34T
Cassette: Shimano 105 11-34 12v
Bottom bracket: T47
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Crank arm length:
Sizes 420–485: 170 mm
Sizes 510–530: 172.5 mm
Sizes 550–570: 175 mm
Brakes
Brakes: Shimano 105 R7170 with SM-RT64 discs
Disc sizes: Front 160 mm / Rear 140 mm
Brake levers: Shimano 105 ST-R7170
Brake calipers: Shimano 105 BR-R7170
Wheels
Rims: Vision SC45
Spokes: Stainless steel
Altezza cerchio: 24 mm (front and rear)
Larghezza canale interno: 20 mm
Mozzi: Aluminum, with sealed cartridge bearings
Perni passanti: Front HH12-100 / Rear HH12-142
Pneumatici: Pirelli P7 Sport 28 mm
Compatibilità pneumatici: Up to 32 mm
Components
Sella: Selle Italia Model X
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Manubrio: Deda Zero2 DCR alloy
Sizes 420–485: width 420 mm (C-C)
Sizes 510–530: width 440 mm (C-C)
Sizes 550–570: width 460 mm (C-C)
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Attacco manubrio: Colnago SR10
Size 420: 90 mm
Size 455: 100 mm
Sizes 485–510: 110 mm
Sizes 530–550: 120 mm
Size 570: 130 mm
Nastro manubrio: Colnago Grip nero
Portaborraccia: Colnago nero opaco (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.
Choose Colnago V4 Shimano 105 Di2 12v and pedal with the precision, style, and performance of a true made in Italy racing bike. Excellence is just a click away.
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.
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Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
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Test the bike : If possible, test the model you intend to purchase.