Originally Posted by
FBinNY
OK, since we KNOW it's index housing, we need to tweak my extruding theory to match the spiral pattern the OP is getting.
The housing wither isn't cut square or it's partly extruding through the ferrule, so some strands are loaded and others, unloaded. Since the strands spiral, the unbalanced loading causes the corkscrew effect the OP is getting.
The fix involves 2 elements.
1- after cutting, touch up the end with a file or a quick end on touch on a bench grinder. You want a nice square end, not anything cut at an angle.
2- use proper fitting flat bottomed ferrules made for index housing. These have structural bottoms that won't deform or allow partial extruding of the strands. The best index ferrules have brass or steel discs with a upward pointing cone pressed into the bottom. The slight cone forces the strands out away from the hole, ensuring that they cannot extrude through.
Thank you for the help. I cut them down straight and have ensured they are filed down. I had the stock ferrule in my box. I used a new cable and remounted. So far it works. It still pulls on the housing when I shift up to the big ring. I will watch it closely. I hope that it is the fix. I really do like how these cables look. Why it is only this side giving me a problem when I used the same ferrule combo on the drive side? I shift the rear way more than the front.
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My bikes: 1970`s Roberts - 1981 Miyata 912 - 1980`s Ocshner (Chrome) - 1987 Schwinn Circuit - 1987 Schwinn Prologue - 1992 Schwinn Crosspoint - 1999 Schwinn Circuit - 2014 Cannondale Super Six EVO