Originally Posted by interested
Yes, but among high milage, high speed, all weather commuters, derailleurs are a majority. (based among other things, on observing the rear wheel of the many commuters that pass me in the morning

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Wonder if those people you see are like the near mythical Experienced, High Mileage Road Cyclists™ of the US Sun Belt cities and suburbs who think they know better than everybody else what Real Cyclists should do?
Seriously. I only spent one day in Denmark so obviously I won't speak of what you see. I had thought the Danish commuting, city cycling environment was supposed to be like other Northern European cities, especially the Netherlands. I have 10 years experience in Germany and the Netherlands. I seldom saw anyone ride a derailleur bike in Germany except on the weekend; and NEVER saw a derailleur bike used in the Netherlands on a weekday.
Who are these high mileage, high speed, all weather commuters of Copenhagen? Are you saying all those hordes of your countryman who cycle commute do not do so in all weather? Only the derailler boys do? That wouldn't even be true in the derailleur kingdom of the US, where there is little evidence that the Experienced, High Mileage Road Cyclists™ soil their pretty derailler bikes with commuting chores, especially in wet or cold weather.