Warner is still alive, living in Illinois. He always reminded of a high school science teacher, or some type of scientist, who's "into" properly designing and engineering a motorcycle that will propel himself at a speed of 200 miles per hour without engine failure. He's very intelligent. Riley utilized mathematics(bore/stroke/compression, overlap), physics(aerodynamics, resistance, wind drag) and chemistry(nitro fuel, oxygenation) . . . and a bit of meteorology(atmospheric pressure, air density) to get this Ironhead Sportster to set a multitude of motorcycle land speed records.