Internal cables

rokt
rokt Posts: 493
edited April 2014 in Workshop
Help....could anyone enlighten me on internal cable routing.

I need to replace the cable to my front mech, with my bike having internal cable routing can I assume that the internal section has some type of sheath within ?

If I remove the current cable will I be able to just feed the new cable through the shifter straight into the external sheathing and then into the internal, if any.

Sorry for being a bit thick, but internal cables are all new to me. Any and all help will be greatly received.

Comments

  • StillGoing
    StillGoing Posts: 5,211
    Not all frames have sheaths or channels. A Dolan I bought had internal cabling with in built channels making it easy to thread replacement cables, but my Basso and Wilier don't have channels or sheaths. I use a piece of cotton tied to one end of the inner and suck it through the hole with a vacuum, before carefully pulling the cable through. This is fine for the Basso and the Wilier other than the cable threaded through the chain stay where I have no voice but to keep persevering with trying to thread it through by feel as I can't get enough suction through the cable outlet to suck the cotton through.
    I ride a bike. Doesn't make me green or a tree hugger. I drive a car too.
  • rafletcher
    rafletcher Posts: 1,235
    Trick is to tie the cotton to the inner BEFORE pulling it out, then it's already threaded through in order to pull the new inner in.
  • StillGoing
    StillGoing Posts: 5,211
    rafletcher wrote:
    Trick is to tie the cotton to the inner BEFORE pulling it out, then it's already threaded through in order to pull the new inner in.

    Yeah not when it's a new frame you're building up for someone and there's no cable in it to tie the cotton to. :D
    I ride a bike. Doesn't make me green or a tree hugger. I drive a car too.
  • rafletcher
    rafletcher Posts: 1,235
    My new frame came with nylon wires run through to allow easy cable installation :-)

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