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eligible

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    What makes a bike eligible for WSBK

    Maybe a silly question, but what makes a bike eligible for WSBK Why can't, for example the MV Agusta F4 run, or the KTM RC8R, or even the 990 Ducati Desmo RR. I understand that the Desmo is not really a true production bike, but the Aprilia RS4V that is used in WSBK is not really a true...