Countershaft Sprocket Question

I have been dual sporting my '03 WR250F lately (Baja kit) and it cruises nicely on the backroads between 45-50 mph. I want to be able to switch between full dirt riding and dual sporting and I was wondering if 1 tooth larger than stock would fit on the WR? I want to give it a little more breathing room up top.

It should, you might even be able to go up 2.

You will have to grind the case saver a little, but a 14 tooth will fit.

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