"From a press release issued by MIC

Motorcycle Industry Council To Launch The USSB Championship

Factory Riders Offered a New National Series

IRVINE, Calif., Sep. 10, 2008 - The Motorcycle Industry Council, the national trade association representing top motorcycle manufacturers and 300-plus other members, will launch a new professional road racing series next year in the United States.

The MIC has formally established USSB, Inc., and already is at work creating a national championship for 2009 that will take place at major racing facilities, feature factory superbike teams and rules similar to those now in place - rules encouraging technological development that advances motorcycle engineering." .........and much more.........

I remember what happened when they split open-wheel racing series.