Easy way to thread cable throught the frame?

[Globalti]

I think professionals use a thin piece of plastic tube? You could slip this over the end of the cable, push it back through the frame until it emerges then use it to guide the new cable through, right?

Any idea where to get this tube? Would my LBS have some lying around the workshop?

 

[lejogger]

I think professionals use a thin piece of plastic tube? You could slip this over the end of the cable, push it back through the frame until it emerges then use it to guide the new cable through, right?

Any idea where to get this tube? Would my LBS have some lying around the workshop?

I'm due to strip down my Carbon and CX bikes over the next week or two as I have new shifters and cables to fit. This is obviously going to mean feeding the rear brake cable through the top tube on the carbon bike.

I was hoping that there would be a guide in the frame itself, but your post has made me question this... I don't even know (and won't until I remove the existing cable) whether the outer goes through the frame or whether I need to trim at the entrance and exit?

If you manage to find out, let me know

 

[Andrew_P]

I always assumed that there would be a solid outer within the frame there is on my Roubaix where the front derailleur cable goes up through the BB area.

 

[Edwards80]

Can you snip the existing cable and use some thin tape to attach it to the new one as you draw it out? Removing the old one would feed in the new one that way.

(Never tried it, might be daft!)

 

[Globalti]

My new Roubaix has separate bits of outer cable at each end of the top tube but I haven't worked out yet whether the cable runs through a thin stainless steel tube inside the top tube or is just bare. I need to remove the little plastic plug at the cable end and look inside.

 

[HLaB]

I think I saw a youtube vid before where the bloke used the old outer for the internal cable as a feeder, then slipped a new outer over the new cable replacing the old one.

 

[BigonaBianchi]

my nerves are frayed just clicking on this thread

 

[compo]

my nerves are frayed just clicking on this thread

Frayed nerves are fine, it's frayed cables that are a pain.

 

[biggs682]

I think professionals use a thin piece of plastic tube? You could slip this over the end of the cable, push it back through the frame until it emerges then use it to guide the new cable through, right?

Any idea where to get this tube? Would my LBS have some lying around the workshop?

i re cabled a unknow make 531 frame not long ago and was surprised to find there must have been a guide inside the top tube and it was a piece of cake to do

 

[User482]

The one bike I had with internal routing, there was no guide inside the frame. So I tied some sewing thread to the end of the old cable, pulled it through, then attached it to the new cable. Worked a treat.

 

[ufkacbln]

Simples

You have an inner and outer

Take out the inner

Put the new inner through the old outer

Remove the old outer

Now slide the new outer over the new inner

Sorted


It is also the way we do angiograms and angioplastys

 

[User482]

That only works if the outer goes through the frame though, surely?

 

[sidevalve]

Get hold of a piece of wire [anything that will go through outers] twice the length of the outer, thread through old and then new outers. Tie knot in end, but up new to old and pull new in by pulling old one out, done.

 

[fossyant]

Na nah na nah na..
Some of us with 'old' bikes and internal brake cables have pucca cable routing inside, none of this poke the cable in and hope you can find the other end !

 

[Globalti]

I'm still none the wiser.....