So the Apes are running 5spd gear boxes? And did anyone else hear the announcers in race 2 mention that Honda is looking at fielding a V4 in 2014?
As far as the Apes, I suspect you mis-heard, or they mis-spoke.
Perhaps only using 5 out of the 6 gears on track.
AFAIK, the transmissions are homologated, I'd be shocked to learn that they had homologated a 5-speed.
There's rumors of a new V-4 Honda(s), both street legal and MotoGP production-racer.
Street legal one would be good, that Fireblade is legal for vintage class racing, I think.