The Tour de France opens this Friday afternoon with a time trial through the streets of Denmark's capital, Copenhagen.
13.2 kilometers on a flat route, very rolling and designed for pure specialists in this type of exercise who should swallow the clock at an estimated speed of around 55 km/h.
There is even talk of a possible average speed record on a stage of the Tour de France if ever the weather conditions are favourable.
To discover
The general classification of the Tour de France
Tour de France 2022: discover the map and the route of the next edition
Penetration in the air, the heart of the problem
To try to get the yellow jersey, the favorites will all be equipped with time trial bikes fitted with a solid wheel at the back.
An essential specificity to scratch a few precious seconds likely to make the difference on the finish line.
These lenticular wheels, without spokes, simply allow better penetration in the air.
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When the air meets a form, it creates turbulence.
However, the more this shape is streamlined and smoothed, the less the turbulence will be and will have an impact on performance...
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