Originally Posted by
AdelaaR
Your calculations do not make sense to me.
50 km over 2 hours would equal 25 km/h average.
Counting in the "quick stop" he mentioned ... let's asume he averages 27-30 km/h.
I averaged 28 on a 40 km run and then I wasn't even going full power because I was riding to my aunt's barbecue in hot weather and wanted to arrive there without sweating too much or being too exhausted.
I definately do not have a 400 watts aerobic power output.
In fact, to keep a speed of about 30 km/h, one needs only about 200 to 250 watts of aerobic power.
I don't even need to crank out that much power...
I average a little over 30kmh on my touring bike on the long commute and once calculated that I needed to sustain a 300 watt output to complete a sub hour 40 on my road bike although I have done this on my vintage fixed gear as well... it is pretty slick and very fast and in race shape I am a buck forty soaking wet.
Once upon a time I would have put myself in the elite category but now I am just a little faster than your average Fred, probably ride more than most, and have been working exceptionally hard to get faster and stronger.