Newguy — don’t know that bow specifically, but most strings are sold by bow length, poundage, and whether recurve or longbow. Maybe someone here can suggest a stringmaker you can contact. A good place to start is with Fletcher, aka Rick from The Feathered Shaft. Check one of his posts in the bow and arrow forum for website link. You might also post this question in the campfire forum, which gets the most visits daily. Unless you can determine this bow is built for fast flight string, I’d stick with B50 or somesuch to be safe. Good luck. dave