In conjunction with the closing of the QI4 biennial, the Queens Museum of Art is hosting a kickoff party for NYC Bike Month on April 26. The rally will include riding lessons, helmet giveaways, live music, free barbecue, and stunt-riding demos by pro BMXers using a 100-foot ramp installation called Fast Forward (free; noon to 6 p.m.; Flushing Meadows Corona Park, Flushing; 718-592-9700).