Gasoline is more than $4 a gallon, and you know what that means: A lot more people than just college professors and DUI offenders are going to be interested in bike commuting. They'll find everything from high-end electric-assist bikes to bare-bones models, all with fast-rolling 700C road-bike wheels, upright positioning and clever convenience and safety features designed to help reduce the work of pedaling to work. /L A Times
