A while back I did a post on Board Track Racers, Interesting bikes ridden by mad men on slippy wooden tracks in the early part of the last century sort of sums up what it was about. I came across this
blog, which shows the interest in the board track bikes, and the velodrome pacer bikes, is alive and well.
Also noticed this on their site, a Harley Davidson fore and aft boxer twin, a bike I never knew they built.....