This Cyclone board track racer was once dubbed the world's most expensive motorcycle. That is, until it was dethroned from that position in 2023.

This had an interesting side effect, however: once board track racing hit the scene in 1908, many riders used their road-made Indians in the races, albeit with some quick modifications.

Board track racing has been relegated to the annals of history. But, a century ago, spectators flocked to Motordromes to watch daredevil feats. The quarter-mile Atlanta Motordrome had been built ...