Ok, I have a question. I am setting my bike up for 1/8 this summer, have front and rear struts, 3.50x10 front tires and 20x10x10 american racer sd23 rears. Bike is a sand bike, so I the gearing I have is 15/43 for the hill. That is a perfect gear for my bike at the hill. So my question is should I Run 18/39 at the track? This is were I am lost, not really sure about 1/8. I had a phone conversation with slower then you a few mo's ago. Very helpful he was, but I can not remember what gearing he told me, YEA YEA I know I could just pm him, what what are u 1/8 guys running? Motor is a 10 mil with 2.86 straight cuts.