The extra bicycle parking racks are to encourage AC Transit employees to bike to work, agency spokesman Clarence Johnson said.
"We pride ourselves in being a 'green' company and want to do all we can to promote environmental consciousness," AC Transit General Manager Rick Fernandez said in a statement.
"Even small things like installing bicycle racks help to set the right tone, send the right message and ultimately improve our overall quality of life," he said.
AC Transit plans to promote Bike to Work Day on May 14 by backing legislation, AB 652, to increase bicycle capacity on buses' bike racks, as well as encouraging AC Transit passengers and employees to enroll in a free Bicycle Safety Class, according to Johnson.
Johnson said merging bikes and buses gives the public more travel options. If a bicyclist rides somewhere but is unable to ride home, they have the option to take a bus.
The unveiling of the new bicycle parking racks will take place at noon in the agency's parking garage at 1600 Franklin St. in Oakland.