Enter the Bike to School Day Facebook Giveaway challenge for a chance to win 10 Schwinn bikes and 20 Schwinn helmets for Your School! By 11:59 p.m. PDT on Bike to School Day (May 10): Register a Bike to School Day event on walkbiketoschool.org. Like the Walk and Bike to School Day page on Facebook (either through your personal account or school account). Submit a response to the question “How could your school use ten bikes and twenty helmets?” by Wednesday, May 10. Contact at info@walkbiketoschool.org. for more information.