All participants receive a FREE 30-Day Bublr Pass and a FREE helmet. Register in advance, spots are limited to 15 per class Learn how to use the Bublr Bike System and how to be a more confident urban cyclist at Rock the Green's 12th Annual Earth Day Celebration Presented by Milwaukee Riverkeeper on Saturday, April 22 from Noon-3pm at the Harley-Davidson Museum. Two Savvy Cycling classes will be offered at 12pm and 1:30pm, spots are limited to 15 per class, registration links