gkamieneski

Carbon Bianchi Intenso. I bought some tubing to help in threading the gear cable though the downtube and out the orifice below the bottom bracket however the plastic cable stop in the upper downtube does not let the tubing pass through.

I have been unable to remove the black plastic cable stop without damaging the carbon. Removed the hex head screw but the plastic stop will not pop out of the frame rendering the threading through the tubing useless.

So I am back to the fish and guess method trying to get the cable to come out beneath the bottom bracket. Any idea how these black plastic cable stops are supposed to come out or are they just epoxied into the frame?

Barry2 

What about threading a thin stiff wire first, then threading your outer over the thin wire as a guide?

Barry

KCT1986

Don't know about the cable stop attachment method, but it has been reported on here that the liners sold for bikes are available in couple of sizes.

Another source of a liner would be ebay. There are some sellers from China that has many ID/OD sizes. Search for: PTFE tube or similar wording.

FBinNY 

IME frames with open ports at the BB are easy to thread without any special hacks.

Feed the wire with the downtube vertical, then use a flashlight and your fingers or a crochet hook to retrieve.

gkamieneski

This is how I always end up doing it, except that I use a JBend spoke to catch the cable. What makes it difficult is that the exit port under the bottom bracket is very narrow. I was hoping to improve the procedure with the cable liner but the plug on the downtube up by the head tube won’t let anything wider than a cable to pass.

Surprised that given the hex head screw that once removed the port plug does not pop out. Very very tight into the frame as if glued in.