I ended up going with 118 links on the chain. It seems like it will work good, I have the axle adjusted a little more than half way closer to the front of the bike. I figure this is good cause when the chain stretches I can adjust the axle back. I think I remember reading something about having as much wheelbase as possible with the pds non linkage suspension. If the chain stretches to much I'll just take another link off. I am running 14 49 combo. I'm finally ready to get this thing in the dirt!!!