WBEZ brings you unbiased news and information. Sign up for our newsletters to stay up to date on the stories that matter.Less than 1 percent of trips in the U.S. are by bike. (Germans, on the other hand, ride bikes for 10 percent of all trips.) The Alternative Transportation Alliance’s Bike Commuter Challenge aims to change that. Businesses compete against each other to get the highest percentage of employee riders. Jerome McDonnell talks bikes while Working Bikes offers live in-studio tune ups.