KTM Australia‰Ûªs General Manager Jeff Leisk has clarified the details and effects of recent rule changes to the MX2 and MXD categories of the 2015 MX Nationals.
Put very simply, the rule states that two-stroke engines in those two classes must be stock standard between (but not including) the carburettor and the expansion chamber. The only exception is that an extra base gasket can be added for extra squish clearance on heavier tracks.
‰ÛÏThese production rules,‰Û
