V4Rs

Built to Win

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Technical

Geometry.

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Select the size to see all the frame specifications and find one that fits you.

AVAILABLE SIZES

Sloping Geometry

Download the Size Guide to have a full understanding of sizes and measures

redefining

Performance.

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INCREASED OVERALL STIFFNESS

This frameset is stiffer than the V3Rs. You can sprint faster and climb with more efficiency. We developed a new testing methodology to simulate and measure stiffness in a realistic and effective way.

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BETTER AERODYNAMICS

The V4Rs profiles have been revised to allow a decrease in aero drag. The Colnago V4Rs, albeit not an aerobike, is a significant leap forward compared to the V3Rs, based on its wind tunnel performances.

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COLNAGO CC.01 HANDLEBAR

The new Colnago integrated handlebar CC.01 is stiffer, lighter and more aero. Compared to the previous Colnago handlebar it has -17% frontal area and +5% stiffness, weighting only 310g..

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T47 BOTTOM BRACKET

The T47 Bottom Bracket - same dimension as of the C68 - is oversize, to allow a better reactiveness of the bike and easier replacement compared to the previous Colnago standard.

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MORE PRECISE STEERING

Pro riders needs to go fast downhill in sharp hairpins. The new fork has been revised to be lighter, more aero, and more precise in cornering.

Technical

Details.

THE NEW CC.01

Colnago Cockpit CC.01 has a drag surface reduced by up to 16% compared to the cockpits mounted on V3Rs, and at the same time the shape has been designed as a NACA-derived profile in order to have the minimum impact on the air flow, which is laminar and clean while impacting the components. This aerodynamic evolution was carried out without reducing the cockpit’s overall stiffness, which is as important as aerodynamics in sprint and acceleration.

AERODYNAMIC DATA

The performances of V4Rs are those of an aero bike.

Compared to the V3Rs, in a real race setup (tested in the wind tunnel with an athlete pedalling at 50kph with 1 bottle and one empty bottle cage) we measured an aerodynamic saving of 3%, corresponding to approx. 13.2 watt. With an advanced aero setup (aero wheels and aero Colnago Computer support) the bike had an aerodynamic saving of 6% (approx. 27.7 watts saved)

HEADTUBE GEOMETRY

Its shape has been revised and perfectly integrated with the new lightweight fork (designed to allow an effective tire clearance up to 32mm) and with the new cockpit. Although the head set upper bearings are bigger than those of the V3Rs, allowing the cables to run inside without the need of the D-Shaped steerer column and enhancing the overall front-end stability, the overall shape has a better drag.

ACCURATE MEASURING

We created internal methodologies to replicate the loading forces of standing-on-pedals and seated positions, and check the overall frame deformation and stiffness. We were able then to define what we call RDS (Real-Dynamic Stiffness), and characterize them in combined multi-load conditions.

SEATED POSITION

In the seated position, loads are applied only on the same plane of the front triangle to replicate all-round riding: Taking the V3Rs as reference value, the V4Rs results as 5% stiffer in this occasion.

SPRINT POSITION

In the sprint position there is a combination of loads applied both on the handlebar and on the bottom bracket, with both component laying on the front triangle plane and normal to the frame plane, aimed to simulate the flexural and torsional stresses at oscillating cambers. Having the V3Rs as reference value, the V4Rs results as 4% stiffer in this particular position.

ROBUSTNESS

The new V4Rs significantly improves the crash worth of the most exposed parts which may be subjected to impact in racing conditions. An example is given by the completely new designed seat stays, which, besides their more aerodynamic shape, also significantly improve the flexural and impact resistance. The robustness of this design also minimizes the need of maintenance.

BETTER HANDLING

The weight distribution has changed from the V3Rs. The front fork is now lighter and the overall weight of the frame kit + handlebar setup has been decreased of 56 grams.

The result is a better handling in corners and more safety and precision when going downhill.

EASIER BIKE FITTING

Geometry has been revised to have even more balanced performance in all the different sizes with respect to the V3Rs. For the V4Rs the relationship between seat tube length and reach is almost linear, the stack / reach ratio has been optimized and harmonized among all the sizes, and the chain stay length has been reduced. This geometry affords a better balance, power transfer and the same race feeling for all the sizes.

Built to do just one thing

V4Rs is built to win

GET YOUR DREAM

Do not miss the excellence.Wherever you are in the world, check out the official Colnago dealer nearest you. You will find advice, assistance and you can see our new models closely

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