I bought my bike used with a vortex 48T already on the rear. What are the stock front and rear teeth count? I have heard and seen people say different stuff . . . knowledge is power...haha

 

16/45. I learned this the hard way when I thought it was 16/46 :O

I went -1/+4

 

Good God man. Your bike is geard like a log truck. I have-1 on the front with my 520 kit and thats fine for me.

 

mine has 46 on the rear n it looks stock to me lol

 

I do think 46 is stock on the rear of the F4.

 

I was wondering the same thing myself? I plan on doing all of the work myself on my bike, but have little knowledge about the F4. Guess it's a good thing i have the manual on disc? [sm=lol.gif] And all the info on here!

 

16/46 is stock on the F4