A timely resurrection of this thread, for me at least. Looking at a '78 Competition GS early in the week, so I've been diving into all threads/things (I can find....) related. I need another bike/project like, well you know the saying, but... I wish the one I'm looking at was black- so much nicer looking than the silver. But it's complete and in good shape. In the same boat as far as needing lower gearing for my terrain. I've got a Stronglight 49d set up as a compact double I may use...

What you need for running bar-ends is one of these-