I'm trying to replace a gear cable.
Normally do this by putting a tube over the old one and sliding the new one in.
but the hole at the end of the chain stay is so small I can't get a 2.5mm tube through. Any idea to get the new cable in.
Post a photo of the chainstay
Sounds like you need a wee hose grommet thing. Attach to the old and the new outer/hose and (carefully) push/pull through
https://www.tredz.co.uk/.RockShox-Barb-Connector-Reverb-Stealth_77198.htm
If you can't get a 2.5mm tube in.... might be a stupid question, but...it's not a vent hole, is it?
Need to work out how to attach a pic first
It's the hole the old cable was coming out of so I guess not.
Remove that cable stop and then you'll have a nice big hole to thread your tube through.
It that supposed to be removed as it seems to be glued to the frame.
Well if you don't take it out you'll possibly end up spending absolutely ages trying to get your new cable through the hole.
Gear cable outers, cut the old one and pull the outer leaving the inner in place. Slide the new outer back in along the old inner, it’ll go through any hole perfectly. Then pull the old inner out and put the new one in.
If the old one is out already, thread some old gear inner thru first then the outer over it as above.
Yes though I’ve obviously missed something important if that wasn’t helpful 🙂
Re-reading… I can’t see a pic so presumably that would help if it loaded. Ah and 2.5mm so just a hole for an inner?
.
So the only option is to remove the stop which seems awkward as there is nothing to grip on or make the hole bigger, both options risk damageto the frame. Just feels like I'm missing something as who would design something so stupid that it is this difficult to replace a consumable part.
who would design something so stupid that it is this difficult to replace a consumable part.
1) anyone who designs an internally routed frame without putting guides inside the tubes
2) the entire car design team at alfa romeo, 1970-2000(+)
Naming the frame might help get to the bottom of it, personally I'm confused about everything here, is it a bare inner going through the chainstay, is there a hidden grub screw holding something in place, is there a better macro or a high megapixel setting to take a better photo 😃
+1 noeffsgiven
THIS TOOL KIT was worth every single penny when I was fitting cables and hoses though my Norco frame which lacked internal guides and had small holes to aim for.
So the only option is to remove the stop
Nope you can just get some stick on guides and run externally... (screwfix do stick on cable tie mounts)
Whats the other end of the cable run like? that looks to me as if it is not intended to have an outer cable in the frame ie just an inner coming out of that hole
Get some cotton, wrap it round the end of the gear cable, apply a small dab of super glue and pull the old cable out - with cotton attached - wrap cotton and glue to new cable, pull back throug.
I'd imagine there's a cable guide under the BB that is covered by a plastic cover, unscrew that and life will be much easier also.
Its a wilier gtr team frame. Just inners in the frame and the rest of the routing was easy.
I will give the cotton a try.
It looks like there is supposed to be outer from that hole to the mech?
It looks like there is supposed to be outer from that hole to the mech?
The outer goes from the cable stop (shown clearly in the OP's photo) to the mech.
Opened the image in postimages.org so thought I'd post a bigger version. Along with a pic of the cable exit shown on road.cc
Does this frame not have internal guides to bring the cable from the headtube to here and then exit into cable housing through a ferrule?
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Maybe I will have to check that.
Do you mean there is a tube from the bottom bracket inside for the cable. I will take the cover off the bb and see at the weekend.
Getting the cable through the frame with a tube was easy. it was just this very last bit that got me stumped.
I'd still go with removing the cable stop. IME it's highly unlikely that there is lining between that stop and the BB and even if there was I'd want to replace it at some point which would mean removing the stop.
kentishman
Free Member
Maybe I will have to check that.
Do you mean there is a tube from the bottom bracket inside for the cable. I will take the cover off the bb and see at the weekend.
Getting the cable through the frame with a tube was easy. it was just this very last bit that got me stumped.
You should of started with removing the BB cover if it's got one.
My money is on a tube being in there running up to the back of the cable stop. 👍
Thanks for the help. Just got round to doing this. The cotton method worked. Pushed the old cable in from the back with a bit of cotton tied to it. Then tied it to the new cable and pulled it through and with a bit of a wiggle it came through the hole.
Cool. I was gonna explain my experience with a new frame which has small seat-stay holes ( I went the other way, from small hole through to downtube hole), but as you’ve sorted it, i won’t bother 😊
If it's like an orro, internal routing has just the inner cable running down the down tube, and then you have a thin sleeve the runs from the low end of the down tube, under the bottom bracket to the hole on the chain stay, and then you run around 120mm of outer from the stay to the mech.
You might need to buy some of these new sleeves to sort out.
https://www.orrobikes.com/product/gold-stc-mechanical-cable-conversion-frame-kit
If you have a hatch under your bb, you should be able to track the sleeves through the chain stay....
