Bet ya never heard of this! Ran 88-90 and was in response to a dying traditional bmx industry. They were 20" road bikes with extremely high BBs raced on curvy courses.
(http://www.schwinnbike.com/heritage/attachment.php?attachmentid=28927)
http://www.schwinnbike.com/heritage/attachment.php?attachmentid=35385
(http://leys.com/basic/rockfish/images/toddracesmall.JPG)
You can buy a similar bike:
http://leys.com/basic/rockfish/sales.html