I, too, was recently certified as a League Cycling Instructor with the League of American Bicyclists.  I've found it useful - Sibley Bike Depot (St. Paul, MN) has done a lot of free bike maintenance classes, but we've only recently started thinking more about designing some bike commuting and safe cyclin classes.  The League has some useful curriculum and resources - although it's a bit rigid in some of its stances.  However it has also been useful in gaining our bike education programs "recognition" - having an LCI somehow grants our program legitimacy, which is kind of BS but it's useful for other people/organizations in the non-profit and government world to take us a bit more seriously.

Jason Tanzman
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Sibley Bike Depot
Volunteer Coordinator
612-232-2737 (cell)
651-222-2080 (shop)
www.sibleybikedepot.org
Sibley Bike Depot's mission is to be an open, accessible space to educate and empower people to use bicycles as transportation, helping to build a sustainable environment and community.  Volunteer with us to help build a bicycling movement in the Twin Cities!