how do i do this with out removing forks first.?
You don't have to but it's a good idea. the S and N triple are a hair different, and without a handy mallot, it isn't particularly easy to install an S top with an N bottom. Could also be the year difference that I tried on my bike. 04 S top with an 03 n lower. IDKIf you install an S top triple, you must install an S bottom triple. The S and N triples have a slightly different rake.