39t sprocket for Hammerhead 250
 

I am thinking about swapping to the 39t sprocket on my Hammerhead. To those who have, how much more bottom end did you pick up? How much top speed did you lose? Also I know that I will have to lengthen the chain 4 links to get it to work. Where is a cheap place to pick up the 4 links and what size should I be looking for? Thanks.

Nobody?