Drivers, watch for bikes Friday night, beginning at 8 p.m.
The San Jose Bike Party will hold a large-scale bike riding event dubbed "The St. Valentine's Day Massacre Ride."
The Mountain View Police Department along with area law enforcement agencies will have additional officers on patrol.
The event is scheduled for 8 p.m. beginning at Plaza Del Sol at 200 W. Evelyn Ave., Sunnyvale. The group will continue biking through Mountain View and Los Altos.
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