Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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You should continue to use a ferrule since it prevents the cable from twisting when you adjust the stop. It also prevents the ends of the long spiral index housing from damaging the bottom of the adjuster or getting pinched closed if it has a conical bottom, as most do.
You might replace the ferrule with one made specifically for index housing, either in metal or plastic. Index ferrules have flat bottoms on the inside to prevent the housing wires from pinching in. The plastic ferrules have a flat steel washer pressed into the bottom. Meanwhile I wouldn't take it apart. You might try disolving some heavier oil or grease in solvent so it wicks in and ends up leaving a more durable lubricating film inside.
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