its 5 speed i got stock rear but i went one down in the front it gave me more of the line but seems like my top end is gone.
Yeah, a bottem end sprocket will take off alot of top end. I currently run a 13 on my mx, but I think I'm gonna go back to the 14 because my 13 revs out the quad too quick, I find myself in 5th gear, where as with a 14 I am in 3rd gear producing more power.