wat size sprokets?

[kfxriderirv]

im putting 18s on my kfx 400 i was woundering wat size sprokets i should go with

[BlueZ440]

I have a 13/38 set-up..I love it. It's perfect for coming out of corners and small tracks.

But it all depends on what you want and what you do with it(track,Trail,Etc).

[Billdog350]

If you want to keep top speed, you'd need something like a 15/38.....BlueZ440 is right on if you're going to be racing on smaller tracks and want more acceleration.

I'm running 22's in the woods so I regeared down one in front and up two in back and it kept the top end nicely.

[slicknickz]

I run 15-40 which is stock rear and plus 1 up front. I have 18's and it seems to pull through the gears nicely.