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Replacing housing that goes thru top tube(8 posts)

Replacing housing that goes thru top tubeKellum1969
Aug 5, 2002 11:19 AM
Going to replace the cable housing for the first time on my road bike. The housing actually goes through the top tube. Before I get in over my head, is there any tricks/tips/warnings I should know?

Is the housing one piece, or two pieces that go into the frame on each end? How do you guide the cable through the open hole? Etc?
Piece of cake.Spoke Wrench
Aug 5, 2002 11:59 AM
Leave the inner cable in place and pull the old housing out. Slide the new housing over the inner cable and use the existing inner cable as a guide to thread it through the frame. Now you can pull out the old inner cable and replace it with a new one.
Wish I'd read that before I pulled mine out...cory
Aug 5, 2002 2:26 PM
My old Trek tourer had the cable running through the right chainstay. I pulled it out five or six years ago and never did get it back in. I tried everything the shop guys could think of, including poking dental floss in one hole and trying to suck it out with a shop vac at the other end. I rode it with a clamp-on housing stop for awhile, but it offended me...When I finally decided to build a singlespeed, the main reason I used the Trek instead of some other bike is so I could quit thinking about that damn cable.
vac worked for me..dotkaye
Sep 5, 2002 8:20 AM
also foolishly deconstructed a bike before thinking of how I was going to re-insert the cable housing.. but used a piece of cotton tied to the end of the cable, poked the cable through and then used a vacuum cleaner on the hole to suck the bit of cotton out, then pulled the cable out. Once the cable is through, the rest is trivial.
the trickDark Sonix
Aug 5, 2002 11:59 AM
here's the trick i use to replace cables on my klein quantum:

1) go to the hardware store / home depot, etc and purchase about 3 feet of thin flexible plastic tubing. you want the smallest diameter that will freely accomodate a cable so bring a piece of cable along.

2) remove the cable from the brake or derailleur and slide the plastic tubing over the cable and into the frame. keep feeding until the tubing comes out the other side. you will need to pull out the free end of the cable from the tubing so you can shove the tubing through the cable hole on the other side.

3) once the tubing is installed, remove the old cable, insert the new. once the new cable is through both ends, pull out the tubing.
Put a cable in the housing so the cable extends..Dave Hickey
Aug 5, 2002 12:02 PM
beyond both sides of the housing. Holding one end of the cable, pull the housing out leaving the cable inside the toptube. When you put the new housing in, just thread it on the cable.
what machines have internal cables AND housing? (nm)Dark Sonix
Aug 5, 2002 12:09 PM
I have two LOOK frames that have internal housing.. nmDave Hickey
Aug 5, 2002 12:12 PM