I'm lookin to find out how many teeth i can fit on my rear sprocket if i am using the stock front sprocket and an e.k. gold chain this is used on the stock setup. I just want to replace the rear sprocket so the front end comes up a lil easier. thanks.:YEAH

 

with that chain your going to have to go down in the front if you wanna go up in the back.
id suggest just getting new front and back and a long chain.
i ride up 12 in the back, down 1 in the front 520.
a 520 conversion is the only way to go. light weight on the chain and sprocket make a huge difference.

 

yes, and the dirtbike chain never snaps.

 

+1 stick with a 525 chain . your not racing on a pro level so the extra 1/2 lb shouldnt be a problem

 

Ok, so the original F4i (02') has a 525 chain, 16 front and 46 back and 108 links.
Now if I go -1 front +10 back (15/56) what kind of chain do I order? How many links?

 

130 links u need

 

How did you came out with that number? to know how to do it on my own