Ok so my oldest boy has joined a race team. I was talking to the team captain and just friendly chat. The subject came up as to what gearing we ran...I told him as of now we run a 13 front 50 rear. His response was "if your gonna race outdoors you might want to put a bigger rear sprocket on". I thought about it for a minute and asked why? I can understand putting a bigger sprocket on the rear for tight technical tracks to be able to stay in the power band ( by the way my son will be 14 and rides a kx 85 two stroke) but for out doors? Tracks are bigger, much faster than say arenacross. Am I missing something? Now I ride a ktm 125 smoker and I did go up 2 teeth in the rear and have been practicing my technique and turning better lap times, but the kx and the ktm are 2 different machines. Read a lot of info on this and thought I had I pretty good grasp of all this but hey I'll admit if I'm wrong.