Pulling through new brake hose with old..

heatshrink?

i generally feed a gear cable through, stick it down the end of the pipe and secure it
push the pipe through and pull gently on the gear cable to guide it

what's not working with tape? when re-rigging the mast on my boat last year I found joining old rope to new using shrink wrap to be pretty effective.

Reverb barb connector has worked for us in the past

You need a Sram Barb connector, use it to join the old hose to the new one, pull out the old hose and it will pull through the new hose at the same time

https://www.tredz.co.uk/.RockShox-Barb-Connector-Reverb-Stealth_77198.htm?sku=245375&utm_source=google&utm_medium=cpc&utm_campaign=Seatposts&utm_content=RockShox&gclid=CjwKCAjwov6hBhBsEiwAvrvN6MOyDb_xA3XhYI0bF9R_NqNRlT6HQKyfMI41WzmQCW2XldhIPQ9b-BoCK0sQAvD_BwE

Another vote for the gear inner inside both cables, then push/pull/wiggle it through. Always use this technique when the internal routing channels are too narrow for tape.

Thanks all. Someone else suggested the barb connector, but seem out of stock everywhere i've looked

I hacksawed the end off of a very small bolt (M3 maybe) and wound that down into one end with pliers then wound the other hose onto that. Than wrapped the joint with tape. It worked fine on an Ebike with very tight tolerances with a non-removable internal battery. Don't try and pull the hose through, but rather push it through while applying gentle tension and wiggling from the other end.

I've just tried the heatshrink and even though it only makes the hose a fraction wider, it is getting caught where it enters at the BB... right pain!

Did this on an orange,

Take the end of the hose and put over it a gear cable end end stop cover thingy. But put a gear cable through first, with the end gear barrel thing through the end of the gear end stop first.

So when you pull on the gear cable through the frame, the end barrel is caught in the end stop and this is gripping the hose. End stop might need splaying open to get over the hose but it worked a treat on the five swingarm where the hole is tight.

Thanks Rockhopper i'll give that a try.

As above, push don't pull, however tempting it is. Both cables over the same inner, maybe with a single wrap of thin tape joining them, has always done the trick for me.

i generally feed a gear cable through, stick it down the end of the pipe and secure it
push the pipe through and pull gently on the gear cable to guide it

I do this.

Small screw, cut the head off.

I bought a barb connector but it was too loose in one of my hoses so went back to my tried and tested screw method.

I just bought an internal cable routing kit off Amazon for £13.....makes life easier altogether.

Watching.
Something I also need to do, and for an Esuss with lots of bits to try to route through, over the top of a motor, behind a battery etc.
Was thinking of surface mounting, but maybe the head off a small screw might do the job.

Be nice if there was a vid of someone doing this to an Esuss, would set the mind at rest so to speak.

Forgot to say, use some sort of lube too to help it along, silicon spray might work, as would faqiry liquid at a push. I think I used some tyre soap but guessing that's not common in most peoples workshop.,

What phil5556 said, small screw, cut the head off.

Used this method on a few orbeas including Rises which have the motor, battery and an awkward cable hose outer thingy joining the main frame to the swinger. Had to give it a bit of a tug and was convinced the 2 hoses would separate but they didn't.

Thanks all, got there in the end, the issue was the small offset hole wear hose enters frame behind headtube is so small at an angle, even just a wrap of tape was catching, but perseverance, too many coffees and much swearing and the heat shrink method worked on 3rd attempt

Gear cable threaded all the way through new hose until the pear is at the end of new hose.
Now also thread cable through old hose running through the frame.
Push/Pull the two threaded together hoses through the frame together.
Remove gear cable when new hose is in the right place.
Make sense?

Your basically using the gear cable as an internal guidance line.

I did this with duct tape, worked really well. Of course it has to be de-greased before you apply the tape...