You will get away with running the old ones in club racing (mainly because they were heaps of shit and weren't competitive), but definitely not the new ones. The R6 riders like to have as much of an advantage as possible.
2011 ZX10R track/race bike
ZRX1200 road bike
Period 6 ZXR 750 race bike
P6 250 production RMX250 motard race bike
2015 YZ450F Dirt track/motard
TE511 trail bike/motard
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