gearing for new tires

[TheFontMaster]

Ok so I just ordered some new razr 2's, and they are 9x11x20, and my old tires were 9x11x22, stock size. And it's also got stock gears on it. I know that these new tires will make me go a little slower. What would be the right size front sprocket to put on there?

Thanks; Andrew

[frosti108]

you could either-

get a new front sprocket with 1 more tooth on it then before

or

get a new rear sprocket with less teeth like 3 or 4 less teeth on it than before.

i would change the rear sprocket if you have the money because it gives you more clearance under the sprocket since its smaller.
rear sprockets are a little bit more expensive usually...
also, if you go bigger on the front one, you might run the risk of not being able to run a case saver because it might not fit anymore.
but either way they say your supposed to change both sprockets and the chain everytime you change one so they wear toggether but eh you dont have to... :)

[frosti108]

oops i just realized you have a 300ex which stock has 13/38.
you should keep the 13 up front and go to a 34 or a 35 out back and it should feel close to how it was before the new tires.