Originally Posted by
CACycling
Once a week on my commuter (loses less than 5 psi per week) and before each ride on my road bike.
+1
A co-worker's car quit and he was forced into borrowing his brother's mtn bike to commute 5 mi. to work. I asked him how it was and he replied that the bike wouldn't coast very well. Upon inspection I found that both front and back tires were nearly flat. I'm amazed he didn't pinch flat. I loaned him my pump and he had a great ride home. He liked it well enough that he is shopping for his own bike and plans to three season commute.