For eight years now, the volunteer-run Durham Bike Co-Op has given out helmets and locks, and enabled hundreds of folks, young and old, to earn bicycles by helping out at the shop, where they learn to care for bikes and do simple repairs. This year, on the Martin Luther King holiday, the Tarwheels teamed up with the Co-Op staff to work on bikes and assemble chain locks. Hear some of what the participants had to say on this frigid afternoon in January.