My son just got a 2003 warrior 350 he has a 12 tooth front sprocket and says that it feels like there should be one more gear to shift to when he is in sixth gear . My question is I wan to change the front sprocket should I got up to a 13 or 14 he is running 20 inch rear tires

 

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Every warrior i have rode is like that. I think 40 is the smallest you can go on the back. Dont know about the front, but i would go up on front one and see. You might have to get another chain to go up 2.