How many watts does it take to ride a bike fast?

 

With the classic racing bike, on a flat and asphalted track, at low speed, the Cyclist spends about 50 Watts to go at 20 Km / hour of which:

- About 48% to overcome tire / road friction.

- About 48% to overcome air resistance.

- 4% to overcome the friction of the bicycle transmission components.

Everything changes when the Rider increases speed.

To go from 20 Km / hour to 26 Km / hour he has to double the effort and if he wants to go at 40 Km / hour he has to multiply by six the effort it takes to go to 20 km / hour.

At 40 km / hour the cyclist develops about 440 watts if he keeps his hands on the upper part of the handlebar, which is reduced to about 320 watts if he keeps his hands on the lower part of the handlebar.

The best cyclists reach their maximum power around 600 Watts and cannot commit to this regime for more than an hour.

With 600 Watts on the pedals the Cyclist moves on the flat at about 50 Km / hour with his hands on the lower part of the traditional handlebar which increase to about 52 Km / hour if he rides with the handlebar and Triathlon / Track position.


Below are links to programs that allow you to do other simulations.


Riferimenti:

 
http://www.kreuzotter.de/english/espeed.htm

 
http://www.ciclistaurbano.net/calcolatore_calorie_bicicletta.php

 
 
 

Articolo 4789 verificato al 2022-05-19 categoria: Il Ciclista