mickey dunlaps 500ex kit?

[flat_track400ex]

does anyone run this can someone give me some info about it i just saw they had one in my new dirtwheels
would it be a good set up for flat track racing??

[BSTURDIVANT]

It's 99mm bore 12 to 1 with a single compression ring like the crf.
Requires an exchange for a bored and replated cylinder or yours sent to Millenium Technologies to get done.

[400ex men]

all i kno about that thing is that it halls *****

[cletusEX]

does anyone know about reliability of the 500 kits? How often are these motors torn down?