I've acquired a duratec track frame. A magnetic t8 to be exact. I'm kind of a noob and am trying to order a bb for it. I dont know if it's italian threaded of english threaded or what size to order. (if that even matters?) I'll be getting a dura ace octalink bb. How should i measure the bb shell? I'm pretty lost here as you can tell. Any info will be greatly appreciated. Thanks