Last weekend, on Easter Sunday, San Franciscans took to the streets for the annual big wheel race. The BYOBW (Bring Your Own Big Wheel) race takes place annually on Easter at Potrero Hill in San Francisco. It is a hilariously splendid event. Full grown humans dress up as luchadors, superheros, chickens, and even Michael Jackson and take to the hill on a variety of wheeled contraptions, including the eponymous big wheel. This video is a collection of some of the epic fails and crashes from the 2011 race. For a gallery of the many strange entrants on their racing wheels, click here.