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They do. They work well also.
I have used them for about a year and changed to my sealed setup mainly for aesthetic reasons.With a standard TT and these the full length cable will run slightly off center.
Also, since there is no pressure holding the cable straight it will bend and wobble around on your top tube. I had to fix it down with two zip-ties to stop it from going everywhere every time I step off the bike.
This is especially true with CS frames who have the cable routing on top of the TT.I'd prefer a sealed housing setup, but if you want full length cables then this is a solution.
If that sits in the tt guide, allowing a full-length cable to clip in then yes... but I'm not sure it does. The description on the jagwire site isn't giving me any clues.