downtube barrel adjuster broken...

[Mazz]

There's enough stuck out the bottom to screw it out with pliers, just remember because you are on the other end you need to turn it as though you are tightening it to screw it out

Mate that's not my bike, it's for illustration only to show @C R what I was on about.

 

[Mazz]

Looks like alot of thread poking out to the left of the adjuster housing.

Not my bike mate, just a pic nicked off web.
Will upload my photo later.

 

[C R]

Mate that's not my bike, it's for illustration only to show @C R what I was on about.

What does it look like in your bike, then.

 

[Ian H]

Ideally you'd use a stud-extractor of the right size. Otherwise you might have something to improvise with (small screwdriver?) that you can wedge into the end and twist it out. It becomes more difficult if the broken bit is seized in.

 

[Mazz]

What does it look like in your bike, then.

Just found this video, mine is an Allez too and it's in the exact same position (top of the downtube).

Thing is, she uses a tap tool... I might have to buy one if the reverse-screw-in-a-bolt trick doesn't work.

I guess rainwater trickles down the gear cable and settles in the housing hence rust etc.

View: https://www.youtube.com/watch?v=MM703GUp0Yw

 

[fossyant]

What does it look like in your bike, then.

Dirty. Knew i wasn't Maz's bike !

 

[fossyant]

An 'easy out' may help. Good bits of kit and not expensive

https://www.amazon.co.uk/Extractor-...1659094672-B0F4814PMQ-&hvexpln=0&gad_source=1

 

[wafter]

Ideally you'd use a stud-extractor of the right size. Otherwise you might have something to improvise with (small screwdriver?) that you can wedge into the end and twist it out. It becomes more difficult if the broken bit is seized in.

This is the route I took to remove one that had snapped of pretty much flush with the brazed-on stop / housing on the frame. It'd evidently been broken through bending / impact rather than over-torquing so it came out easily enough, which was a relief!

Obviously the inner cable needs to come out so you can get the extrator in there..