I was thinking 12/36.
I was using a 13/40 setup, then i broke the front sprocket. when I went to get a new one all they had was a 12. I put that on and it is real great, but i lost my top end. So i was thinking of going to a 12/36 setup to get it back to what it was.
I do like the take off power of the 12 tooth.
thanks for your input.
George