The State of Cycling Report: The rest of the story
But the report does more than exaggerate the number of people who bike to work in the city; it has some other interesting information in spite of its dubious methodology.
Commenters to this blog have challenged my admittedly anecdotal evidence of widespread bad behavior by city cyclists, but it turns out that cyclists themselves admit there's a problem:
95% of frequent cyclists and 85% of infrequent cyclists have witnessed unsafe cycling behavior. Only 30% of frequent cyclists always obey traffic laws, while approximately 50% of infrequent cyclists obey traffic laws.
"Frequent" cyclists are defined as those who say they ride their bikes two or more times a week, and "infrequent" cyclists are those who say they ride their bikes "one or zero times per week."
What about safety? "71% of frequent cyclists always wear a helmet, while only 55% of infrequent cyclists wear a helmet."
The demographic profile of city cyclists:
While people of all ages, races, and genders bicycle in San Francisco, frequent bicyclists are more likely to be male, Caucasian and between the ages of 26 and 35...Women make up 49% of San Franciscans, but only 23% of frequent cyclists. Asians make up 32% of San Franciscans, but only 12% of frequent cyclists. African Americans make up 7% of San Franciscans but only 2% of frequent cyclists and Hispanics make up 14% of San Franciscans but only 10% of frequent cyclists (page 2).
Frequent cyclists "are more likely than infrequent cyclists to report a household income of over $100,000. Other surveys have also shown cyclists to have higher than average incomes" (page 18).
People from 26-45 are more likely to be frequent cyclists, while people older than 46 are less likely...Men are more likely than women to be frequent cyclists...People in lower income households are less likely to be frequent cyclists, and people in households making more than $71K annually are more likely to be frequent cyclists"(page 23).
The typical cyclist in SF is a young, prosperous white guy---a profile of an elitist nicely illustrated by this video.