A full factory YZ125 would cost Yamaha half of what it takes to support a YZ250F for a full season! Look at what Roczen did on a factory KTM 125SX last year after he wrapped up the MX2 championship, in one race he rode the screamer to a fifth place finish and looked smooth and comfortable! Two strokes continue to dominate the off-road world. Look at the top guys racing GNCC, Hare Scrambles, etc... all on two strokes!!! MX needs two strokes, give Privateers a chance to be competitive without going bankrupt on overpriced, overweight, ticking time bombs! AMA/FIM governing bodies need to pull their heads out of their rears and wake up, equal displacement would not mean the death of four strokes, only full gates at races. Privateers would be competitive, different conditions would favor different bikes (ie..2T vs. 4T), it would really revive the off-road and MX motorcycle market, and encourage forward thinking in terms of design an innovation amongst manufacturers!