Cervélo R5 Ultegra Bicycle – Lightweight, Stiff, and Responsive Racing Bike
The Cervélo R5 Ultegra is designed for those seeking the perfect balance between lightness, stiffness, and steering precision. It's not enough to create a lightweight bike: the goal is to build a bike capable of transferring every watt directly to the road, even under the power of professional cyclists. And that is exactly what the new R5 does: the ultimate racing bike for climbs, technical descents, and high-level competitions.
Cervélo R5 Ultegra – Key Features
Ultralight high-stiffness carbon frame
Complete Shimano Ultegra Di2 12-speed groupset
Reserve 34TA / 37TA wheels with DT Swiss 240 hubs
Integrated 4iiii Precision Pro Dual-Sided power meter
Cervélo carbon components for maximum performance
Tubeless compatibility and centerlock disc brakes
Technical Specifications – Cervélo R5 Ultegra
Frame and Fork
Fork: Cervélo All-Carbon, Tapered R5
Headset: FSA IS2 1-1/4 (45° x 45°) / 1-1/2 (36° x 45°)
Front axle: Cervélo Aero Thru Axle M12x1.5mm – 122mm
Rear axle: Cervélo Aero Thru Axle M12x1.0mm – 169mm
Wheels and Tires
Front wheel: Reserve 34TA, DT Swiss 240, 12x100mm, 24 holes, centerlock, tubeless ready
Rear wheel: Reserve 37TA, DT Swiss 240, 12x142mm, 24 holes, HG freehub, centerlock, tubeless ready
Tires: Vittoria Corsa Pro Speed TLR G2.0 – 700x26c
Shimano Ultegra Di2 drivetrain
Crankset: Shimano Ultegra R8100 – 52/36T
Bottom bracket: FSA BBright, thread together for 24 mm axle
Front derailleur: Shimano Ultegra R8150
Rear derailleur: Shimano Ultegra R8150
Chain: Shimano M8100
Cassette: Shimano Ultegra R8100, 12v – 11-34T
Shift/brake levers: Shimano Ultegra R8170
Brakes and Rotors
Cockpit Components
Handlebar and stem: Cervélo HB18 carbon
Seatpost: Cervélo SP33 Carbon
Saddle: Prologo Nago R4 PAS LIGHTWEIGHT TiRoX
Power Meter and Accessories
Available Sizes
Ideal for:
Climbers and granfondo cyclists seeking a lightweight and high-performance bike
Athletes who want maximum efficiency uphill and stability downhill
Demanding road cyclists looking for a professional upgrade
Road races, alpine climbs, UCI competitions
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.
Cervélo R5 Ultegra: the ultimate road bike for those who want to conquer every climb.
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.
