I have not had a road bike w/o threaded shifter bosses in a longggggg time. New build is going to require an in line BA…anyone have a fav? I was assuming Jagwire would make a good one, but ya know what ‘they’ say about assuming, emphasis on the ASSuming.
I’ve used both these link and these link and they both work really well.
The J2’s might be a little more adjustable one-handed but they’re pretty similar to me
I have the Jagwire’s on my S2…although I use them more as a cable splitter…don’t think I have ever once used them to adjust my shifting.

Ok cool thanks guys! I ride a Lemond Rev and from time to time when I switch back and forth it needs a little tweak. Nice to be able to do it right on the road bike w/o a dismount and tweak.