Internal cabling guide straws.

[raleighnut]

Hi Colin,time to fess up.The bike was built last July by me.The cables were fed through the straws and the sraws were pulled through and out of the frame
Jump forward to now and after the bike been sat around inactive for a while find that rear shifting is almost seized up so deside to rerun the cable and give a clean. Bear in mind this is a super clean bike so why the shifting went west is a mystery to me
Anyhoo,took the cable off the rear mech and tried to pass the straw over the cable at the chain stay aperture only to find that the straw will only go about 7" along the cable then jam. No way would it go up to the downtube cable stop.
I then made the monumentaly stupid decision to pull the cables out hoping that there was proper internal guiding installed.
I mean,who would use 5p woth of plastic straw in such an integrally important area as gear cables on a carbon fibre bike
How wrong I was and now have a bike with neither cables nor cable guides.A very bad day.

With regards the idea of leaving the straws in,surely they would need to be the precise length between the cable stops on the downtube and the chainstay, (which they are not) otherwise the cable ferulles would not sit square in the cable stops

Hope this makes sense Colin.I`m a bit p***ed off cos I feel I`ve screwed up one of my prime bikes.Not good.

Ps Colin thanks for the link,seen it before but I think my routing is a bit more internal than that.Ta mate.
Pps Good job I`m totally in love with the Basso (always was) after a big re-fit.

Try feeding the new inner cable in from the top then sliding the outer over it, but you may have to remove the BB in order to route the inner past it.

 

[Globalti]

Go to a plumber's merchant and buy a metre of 7mm copper tube. You can put a slight bend in one end so that it emerges from the hole in the frame. I even found some 3.5mm cunifer (copper/nickel/iron) tube that is used in things like Citroen car hydraulics - this does the job even better.

 

[subaqua]

Go to a plumber's merchant and buy a metre of 7mm copper tube. You can put a slight bend in one end so that it emerges from the hole in the frame. I even found some 3.5mm cunifer (copper/nickel/iron) tube that is used in things like Citroen car hydraulics - this does the job even better.

I was going to suggest a small bore capilliary tube straightened out.

 

[Avoneer]

Hi Mate,
Came across this forum by accident.
I'm only other side of the hill in Bacup and have replaced loads of internal cables on just about every type of bike.
I'm a bike mechanic so fetch it over and I'll see what I can do - couple of pound in the tea fund keeps me smiling.
Don't stress or panic - it's all do-able with a bit of patience.
Pat.

 

[kjenson]

Hi,
I came across this as I have done the same thing and pulled the cable out without replacing the straw???
I have the RT58 .
Did anyone come up with a solution??? Thanks