On Easter Sunday of 2000, a crazy person named Jon Brumit rode a Big Wheel down Lombard Street. The event grew in popularity and eventually outgrew the famously curvy road. Today it takes place on an even curvier but lesser known spot on Potrero Hill. Of all the absurdidites that happen on a regular basis in San Francisco, the Bring Your Own Big Wheel race is probably the most fun. Whether you're watching from the sidelines or careening down the hill on a plastic tricycle meant for five yearolds, it simply cannont be missed.