2010 600 Etech 154 Summit X - going from 2.25 to 2.5

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I am going to throw the 2.5 track I have om my 2011 Xp onto my 2010 600 Etech. I know it has the stock 8T drivers, and 19T 49B. Do you think I have to gear down going from the 2.25 to the 2.5?