While BMX is still very much alive and well, its heyday was in the late 1970s and early 1980s with some incredible style and design choices made as big business felt its way though the emerging trend.

How safe is BMX racing? Safe enough that Troy and Brooke Busenitz had no major qualms about putting their sons — 5-year-old Tristen and 3-year-old Tucker — on the track. The brothers, who were ...