EricGorr
Super Power AssClown
- Aug 24, 2000
- 708
- 1
New AMA rules regarding the YZ250F
Starting in 2003 the maximum displacement of a 4-stroke racing in the 125 class 250cc. But for this year 2mm overbores are allowed for modified amateur classes.
For those of you thinking about racing 4-strokes in the open or 250 classes. In 2003 the maximum displacement of a 4-stroke in the 250cc class is 450cc. The minimum displacement for a 4-stroke in the open class is 475cc.
:scream:
Starting in 2003 the maximum displacement of a 4-stroke racing in the 125 class 250cc. But for this year 2mm overbores are allowed for modified amateur classes.
For those of you thinking about racing 4-strokes in the open or 250 classes. In 2003 the maximum displacement of a 4-stroke in the 250cc class is 450cc. The minimum displacement for a 4-stroke in the open class is 475cc.
:scream: