I installed one of these http://www.universalcycles.com/shopp...ls.php?id=6689 on my "derailleur" cable (I'm using an Alfine, so technically it would be IGH cable) housing in hopes that I could dial in the cable length. I am using a J-Tek bar end shifter, so an inline adjuster is my only option.
Anyway, when I got it at my LBS it was sold loose and "solo" - nothing else. I installed it using standard Jagwire housing caps, and it does not seem to do anything at all when I twist it. No lengthening, no shortening, nothing. I assumed that it might be a lack of friction inside (where the housing cap sits), so I tried a number of twists, angles, etc to try to get the cap to engage. Still, nothing.
The instructions on the Jagwire site indicate "included" caps for 4mm and 5mm housing, which leads me to beleive regular caps won't work.
Does anyone have experience with these before I check in with my LBS regarding the (apparently) missing caps?