Originally Posted by CliffordK

Excellent!!!

I have started wondering if there is a bit of an odd effect, that the cyclists that do longer commutes may do better than the cyclists with shorter commutes, even if it means expending the effort over longer distances.

In my case, I get a lot of my riding and overall fitness from commuting.

While I don't typically push real high speeds, it still is a lot of miles, and the overall fitness is certainly getting better with time.

And, of course, those with longer commutes will tend more towards road bikes than the typical commuter bikes.