Hi Les,

I can't say for sure Les , I took it as being NX5 as I'm sure that's where the biggest market would be , especially if the proposed 250cc Classic TT Race goes ahead , which I believe is to be announced at the bike show.
I do know of a unused NF5 (SPL) crank for sale or he would exchange for a 1988-1989 NF5 Crank