This is your brain on Grant Petersen: Every comfortable assumption you have about a subject is turned upside down, and by the time you finish reading you feel challenged, energized, and smarter. In Just Ride—"the bible for bicy...

In the same way that Michael Pollan's slim bestseller Food Rules brought a gust of common sense to the everyday activity of eating, Just Ride is a revelation. Forget the ultralight, uncomfortable bikes, flashy jerseys, clunky shoes th...