Whistle Vaero Dura-Ace 12Di2 Racing Bike – Performance Without Compromise
Speed, precision, and innovation at the highest level! The Whistle Vaero Dura-Ace 12Di2 is a racing bike designed for the most demanding cyclists, seeking the ultimate in technology, aerodynamics, and lightness. With a frame in T700 and T800 carbon, the Shimano Dura-Ace Di2 12V groupset, Tubeless Ready carbon wheels, and a weight of only 7.4 kg, this bike is a concentration of pure performance.
Strengths:
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Full carbon T700/T800 frame – Maximum lightness, stiffness, and aerodynamics.
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Shimano Dura-Ace Di2 12V drivetrain – Ultra-precise and wireless electronic shifting.
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Shimano Dura-Ace hydraulic disc brakes – Superior control and stopping power.
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FSA SC45 Tubeless Ready carbon wheels – Smoothness and responsiveness for high speeds.
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Continental GP5000 TR 700x28 tires – Grip and comfort on every pavement.
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FSA Metron 5D integrated handlebar – Aerodynamic design with internal cable routing.
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Ultralight weight of 7.4 kg – Maximum performance without compromise.
Technical Specifications
Frame and Fork
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Frame: T700 and T800 Carbon, integrated cable routing, PressFit 72x41 bottom bracket, compatible with tires up to 700x30
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Fork: Carbon, 12x100mm thru-axle, compatible with tires up to 700x30
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Headset: FSA No.55R 1.5”
Transmission and Components
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Crankset: Shimano Dura-Ace FC-R9200, 12 speed, 52/36
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Front Derailleur: Shimano Dura-Ace Di2 FD-R9250F
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Rear Derailleur: Shimano Dura-Ace Di2 RD-R9250
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Shifters: Shimano Dura-Ace Di2 ST-R9270
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Cassette: Shimano CS-R9200, 12 speed 11-30
Brakes and Wheels
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Brakes: Shimano Dura-Ace BR-R9200, 160mm / 140mm rotors
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Wheels: FSA SC45, carbon, Tubeless Ready
Cockpit and Comfort
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Handlebar: FSA Metron 5D, integrated carbon, internal cable routing
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Seatpost: Carbon, 0mm offset, 400mm length
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Saddle: Prologo Nago R4 (carbon rails) / Fizik Antares Vento R1 (carbon rails)
Tires
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Tires: Continental GP5000 TR Tubeless Ready 700x28
Electronics and Weight
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Shimano Battery BT-DN300, positioned inside the seatpost
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Peso totale: 7,4 kg
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.
Face every challenge with the Whistle Vaero Dura-Ace 12Di2 – the racing bike for those aiming for victory!
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:
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Comfort : Choose the larger size.
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Performance : Go for the smaller size.
Final tips for choosing
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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.
