with single reduction, you need a sprocket almost as big as the wheel you are driving.
so, saying "95" teeth is irrelevant, as the ratio required is governed by wheel diameter.
the engine will turn at so many rpm. at a given speed, a large wheel will complete less rpm than a small wheel. the reduction needs to be calculated by wheel size.
invariably 16:1 on a 26" wheel. 12:1 on a 20" etc...depends on engine, terrain, weight....
and those 6 tooth pinions onthe rockets are cruel to chains! they love to throw them! chew them! snap them! wear them out!
they do work, mind you, but theres the dirt bike versions that have a small reduction already fitted, and run a larger output sprocket... much nicer.
it takes roughly 5 attempts to make a GOOD motorised bike from scratch. after that, theyre invariably perfect until you try getting fancy again...