BikeMath

Some observable trends in Portland bike commuting:

5 degree increase in temperature: 10% increase in ridership
5 degree decrease in temperature: 25% reduction in ridership
First Rainy-Ass Day in Awhile: 50% reduction in ridership
Gas Costs More Than Beer: 60% Increase in ridership, 10% increase in drunk ridership
5 cent reduction in price of gasoline per gallon: 35% reduction in ridership
Tour De France with Lance Armstrong in it: 20% increase in ridership
Tour De France without Lance Armstrong: no discernible change

Where can you go for pithy observations of bike commuting trends and minutiae? That's right, Badinia.com!

Well, it's available at no cost to you, at any rate.

How Am I Like A Naughty Nun? I've Got A Bad Habit.

Since I lean in on my left, and not centered over the seat, over the last 9000 miles of riding I have worn this pattern on the left side of my top tube. This is how the Grand Canyon was formed, but in primer and paint. My bad habit leaves a mark.