I saw this nice picture of the President of France, and recalled a term we Russians use for a bicyclist who only rides small distances in the city: "flowerbed rider" (клумбокат). I would not call it derisive, it has a nice amateurish touch to it. A lot of people call themselves "flowerbed riders". There has been a bicycle craze in Russia in the last several years.
I'm curious if there's a similar term in French.