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81mm bore

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After the GP Commission convened at Assen to meet regarding rules for the 2011 season, and other GP affairs, talk quickly began to spread that rumors of a Moto3 class were true. Seeing the success of Moto2 in replacing 250GP, the GP Commission seems to think that a similar race series could successfully replace the 125GP class, making all of GP racing a four-stroke affair as early as 2012 or 2013.