Only springs connect the rear of Maurice Steinlauf's bike with the roving front wheel. (Wallace KirklandTime & Life Pictures/Getty Images)
Ice Bike, with protective mittens on handles, is Joe Steinlauf's own solution to Chicago's icy winter streets. (Wallace KirklandTime & Life Pictures/Getty Images)
Bedstead Bike was dreamed up by Joe Steinlauf, who got the idea while lying around in bed one morning. (George SkaddingTime & Life Pictures/Getty Images)
Gangbusters Bike mounts 13 shotguns, two revolvers, six bayonets, flare gun. (Wallace KirklandTime & Life Pictures/Getty Images)
Uno-Wheel, if braked suddenly, has been known to spin its rider round and round inside the big main wheel. (Wallace KirklandTime & Life Pictures/Getty Images)