Someone before me installed a Campy NR fd which I am keeping on the bike. The cable runs through a Campy dt cable guide but it wraps around the seat tube since the guide isn't long enough. I tried using a dt cable stop instead, and then using some cable housing but realized that the fd does not have a cable stop so that won't work. The only thing I can think of is using a bb cable guide but there are no holes there for the screw. Any suggestions?