Dale, Ken, etc.,
I know nothing of this, but a quick google brought up this Newsweek article with a picture of Francesco Moser's 1984 hour-record breaking bike with disc-wheels. At the time, Moser broke Merckx's 1972 hour-record.
Make's you wonder if others had tried them before then? 1984 is bordering on our timeline anyway!!
Paul Williams,
Ottawa, ON, Canada