I know I posted something about this before, but I can't remember the answer. I am having my KX 250 bored out to a 310, and need to change the gearing. It has been suggested that I knock 3 teeth of the rear sprocket, which would bring me down to a 45 tooth. Would I get the same ratio by simply adding 1 tooth to the front sprocket? It came stock with a 13t on the front, and there is pleny of room for a 14t. Which is the better way to go, and does it make a difference as long as either outcome produces the same ratio? Sounds like a stupid question, but I want to get it right the first time!! Maybe I don't even need to change? Any 310 owners have any suggestions?