The FIM said that as of 2011, the 250cc class will be replaced with a new 600 category that will feature 4-stroke engines limited to 600cc and a maximum of 4 cylinders. Fuel regulations will call for the use of unleaded fuel that is restricted to 10 mg/kg of sulphur, down from the current requirement of 50 mg/kg.
Manufacturer’s interested in competing in the new class will have until July 31, 2008 to make their intentions known to FIM and Dorna Sports SL, the commercial rights holder for the MotoGP series. Open discussions will start after the cut-off date to determine more detailed technical specifications for the series.
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