sprockets and tire size

[Xx300exX]

i just got a set of rear raptor tires and they are 20" instead of the stock size 22" on a 300ex. it had made all the gears short and i have to shift faster than normal. it has a stock sprocket on it should i go up a tooth in the front?:devil

[Razorback]

yes, go up 1 tooth in the front or drop two in the rear. it'll get close to what you're used to.