The Department of Public Safety is tightening bike policy and encouraging students to abide by a mandatory rule to register their bikes.
While permits are required, only 1,000 to 2,000 of the bikes on campus are registered, said Randy Young, DPS spokesman.
In an effort to increase registration, students who register their bikes receive a 50 percent discount on bike locks at UNC Student Stores.
And as a result, lock sales have nearly doubled, causing a temporary sellout until Monday, said John Gorsuch, director of Student Stores.
“This year in particular I would say it’s been kind of an above average year,” he said.
“(DPS) has been better at getting the word out,” Gorsuch said. “Students have been more responsive.”
Students can register for free, either in-person at the department or on its website, Young said.
He added that registered bikes are more likely to be returned if stolen because DPS is able to track them.
“Bikes that are stolen or involved in crime are usually not registered,” he said.