Gear cables, oil/grease?

When replacing gear cables, inner and outer. Is there a need to oil the new cable.
Also I've considered applying some grease to the inside of the outer cable caps.
My thinking is it will help stop water getting inside? Or do you think it could hold dirt?
Also I've considered applying some grease to the inside of the outer cable caps.
My thinking is it will help stop water getting inside? Or do you think it could hold dirt?
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I also find a smidge of grease on the ferrules, especially at the headtube area stop creaking.
Light squirt of a PTFE based lube is all I ever use.
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You can dab the end of the inner into some grease, just to encourage it to go through the outer cables. I do that sometimes.
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If you later spray the inner cable with something like GT85 it will unfortunately remove the grease.
Word of warning, I used to liberally apply grease to cables and noticed a definite slowness in gear changes on the road bike ( think may have lighter spring in rear mech) and now a lot less "liberall"
I do frequently spray the lever mechanism with GT 85 as removes grit/ crud and keeps things moving nicely. I feel grease on exposed parts can cause problems as often becomes a "magnet" to hold grit.
Also don't use GT85 or WD40 on bearings as will remove grease protection and cause friction damage.
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I was thinking of converting my rear gear cable to a one piece outer, currently it three piece, like you said BigLee1 only two open ends for censored to get in.
If they start to get a little sticky use a little furniture polish doesn't attract grit and muck but provides a very slippery surface.
Oil and more so grease are the worst thing you can stick on them as it will take no time at all for them to get all clogged up with grit and dirt.
One way to increase the life of a gear cable is to run full length outers mainly this is done for the rear and very rarely the front.
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Another tip is to bend the rear loop around first before cutting it. This keeps the end square and gives a more precise shift as when the outer bends, the inner side takes a shorter route and pushes wires out.
This means the ends are not square and therefore rock under load and also sets up the condition where the wires start to imbed themselves into the endcaps causing all sorts of problems.
Much more important if you run full length casings.
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