Yeah, the mc21 is definately not pre '89 (i.e. 1988 or earlier).

The PGM-II mc18 isn't either really.

The cut off date here for forgotten era is 1989, now an f3 mc18 may well be legal in this class but it's certainly not in the spirit of the ones I've watched.

MJ has set a cut off date for bikes that will not be removed from the DP F250 div-II championship* (no matter how fast they go) of pre 1988. i.e. the mc18 can be promoted if the rider goes fast enough, the mc16 can't.

*normal Div-II qualifying rules mean if you run within 107% of the lap record in your first 4 meets that year you're promoted to Div-I.
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