It certainly doesn’t have the largest fleet, but Salt Lake City’s three-month-old Greenbike is a prime example of what other medium-size cities should do when trying to make riding easier on bike commuters. With 10 kiosks and 100 bikes in its fleet, it plans to add another kiosk, and extra docks on existing kiosks, this summer. By summer 2014 the number of stations will double. But what’s really impressive, is that the share program—in conjunction with the city’s new Bicycle Master Plan (completion expected in December 2013)—will help the city add to its existing 180 miles of bikeable lanes and paths with a wider network throughout the city, according to Colin Quinn-Hurst, Salt Lake City transportation planner. Construction will begin in 2014. Want a bonus for joining now? Registering for an annual membership online gets you a free helmet. Pick it up at a local bike shop downtown.