Gearing for more speed?

a scientific equation? i dont know because there are so many different ranges of machines
but the smaller front sprocket will allow the motor to wind out quicker,and is different than a bigger rear
there's a big difference between the 2 options because of that reason,and when the rear rim comes in play- the bigger (rim) will cover more ground faster,and easier,than a smaller rim
the bigger front sprocket will be faster top end,and you will use the motor more,but at different rpm's
a 4 stroke most of the time has a lot of torq on tap so you can use a big front and be really happy with that option
i would say you could go 2 teeth easy on your bike with out losing a lot of torq (for climbing) but i haven't rode a lil bike like that so i cannot be perfect on that
and it will allow you more motor so your rpm's will be lower (you wont be so worried about blowing it up)
in fact i bet you would love the choice ,let me know what you choose,and how it works :cool:

Try this program.. It'll help you figure that out, plus a few other cool things.

http://www.mxboards.com/sprocket/sprocket.zip