I've really got a "thing" for these old time board track racers. Apparently it all started with the pacer motorcycles that led in cycle races on the board tracks. Then some bright spark came up with the idea of racing the motorcycles themselves. The bikes got lighter and faster, the tracks got bigger and the danger got higher and higher. Take a look at some of these photos for more pure nostalgia
This is how it all started. Large capacity pacer motorcycles on the cycle board tracks.