Racing down streets with a deafening roar, popping wheelies and jamming traffic, dirt bikers have become a common sight in San Francisco, frustrating residents, scaring pedestrians and quickly moving ...

As the bike and the vehicle reach the corner joining ... shooting and was recovered from the scene, according to SFPD. The fatal police shooting remains under investigation, according to SFPD ...

The San Francisco Police Department said they are monitoring ... "But, we've seen that behavior change, we've seen it really go to these stunt bikes and dirt bikes and now the legislation needs ...