Picked up this early Trek with mixmatch parts. I happened to have a nice Dura Ace group. First thing I had to do was drill and tap the bottom bracket shell to run the cables and eliminate the clamp on guides. Second, and only because this is a lower end frame, I removed the rear derailleur cable stop and added a clamp on stop. I was a little unsure if I could get it at first, but everything turned out pretty good.