LOL, A one bike competition, to say this is dumb is an understatement.
Every manufacturer should just hold seperate nationals for their own brands and for each cc. The Honda 250CRF Nationals! The Yamaha YZ250F Nationals! The Kawasaki KX450F Nationals!
This way everyone is handicapped into riding a single bike in every competition. If you bore your bike out you are disqualified, if you change a foot peg you are disqualified, everything must be completely STOCK from the factory. Infact, if you have a piece of dirt that did not come from the factory at the start of the race you are disqualified. Bikes come vaccuum sealed in industrial strength plastic bags and are only opened at the starting line.
Yes, the CR150F is no where near a CR125, but that's like I always say, for some reason off-cc bikes are usually terds. 80, 125, 250, 500's. Odd crap like a 110 or 175 or 450 or 150 are usually junk for some reason and never have any power pull in 2nd gear. They just lay down and die like horse with a broken leg.