I agree with Sheldon. The cycling pyramid is logically ordered according to the cyclists who put the most hours into real cycling per day over their entire lifetimes.
Racers might train 4 hours per day, but they only do it for 10 or 20 years MAX.
Tourists might travel thousands of miles, but then they stop until next year.
Commuters ride every day, often 2 hours per day, every day from age 10 until age 85 (hopefully). This puts them well above Tourists and also above Racers - even professional ones - for their level of commitment.
There exist some racers who convert into commuters when their racing career is over. These ones stand at the very pinnacle of the cycling pyramid. We commuters tend to think of those guys as Commuters who just went astray for a year or two ... *grin* ...
- Don *grin* Gillies
San Diego, CA