Colnago Y1Rs – Aero Racing Bike for Maximum Performance
Designed to challenge the wind
The Colnago Y1Rs is the essence of aerodynamic engineering applied to road cycling. Ideal for sprinters, breakaway specialists, and cyclists who want to dominate high-speed races, this bike is born from years of research, wind tunnel testing, and technological innovation.
Thanks to a 19% reduction in frontal area compared to the V4Rs, the Y1Rs ensures superior aerodynamic penetration without compromising stiffness and comfort, even on longer rides.
Strengths of the Colnago Y1Rs
Revolutionary aerodynamics: Optimized design with curved down tube and CC.Y1 handlebar featuring WYND© technology.
Enhanced stiffness: Frame 3.5% stiffer than previous model for immediate power transfer.
Integrated aero handlebar: "Seagull wing" shape for reduced flow separation and greater stability.
DEFY seatpost junction: Double Y-joint that improves aerodynamics and comfort by absorbing vibrations.
Wind tunnel testing: 20 watts saved compared to the V4Rs to maintain 50 km/h.
Modern compatibility: Compatible with latest generation electronic groupsets, fully integrated and designed to minimize weight.
Technical Specifications
Weight and Limits
Frame and Components
Frame: Colnago Y1Rs carbon
Fork: Bayonet fork for disc brakes, fully integrated cables
Headset: ID 35 / OD 47 – CeramicSpeed SLT treated
Seatpost: Carbon, 0 mm or 15 mm offset
Thru axles: 12 mm – front 100 mm / rear 142 mm
Tdrivetrain – Sram RED eTap AXS 12v Group
Shifter: Sram RED eTap AXS Disc 12v
Front derailleur: Sram RED eTap AXS FD-RED-E-D1
Rear derailleur: Sram RED eTap AXS RD-RED-E-D1
Chain: RED CN-RED-D1
Crankset: 48-35T
-
Cassette (optional):
Bottom bracket: BSA (threaded)
-
Crank arm length:
170 mm (sizes 420–485)
172.5 mm (sizes 510–530)
175 mm (sizes 550–570)
Brakes – Sram Red AXS HRD System
Disc brakes: Sram Red eTap AXS HRD Shift-Brake System
Rotors: 160 mm front / 140 mm rear
Brake levers and calipers: integrated in the Sram Red AXS HRD system
Wheels
Components
-
Saddle:
Handlebar: Colnago CC.Y1 integrated cockpit, standard geometry
Handlebar stem: integrated CC.Y1
Handlebar tape: Colnago Grip Black or WT23 (for WT24 version)
Bottle cages: 2x Colnago x Elite – compatible with Y1Rs
Included accessories: Computer mount (various sizes)
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.
If you are looking for maximum efficiency, impeccable aerodynamics management, and WorldTour-level components, the Colnago Y1Rs is the ideal bike. Perfect for those who want no compromises between speed, control, and technological innovation.
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.