joewein
Maximum Pace
- Oct 25, 2011
- 3,532
- 3,693
If rollers produce constant friction, power output only has to rise in proportion to speed. Wind resistance (force to overcome aerodynamic friction) however increases to the square of speed, which means power output rises to the third power of speed. 60 km/h on those rollers requires twice as much power as 30 km/h. On a real road it requires 8 times as much power (unless you're drafting).