Just bought this🙄

[bikeworkshop]

Reductio ad valorem
...as we say in Wales

Note i cut the fork steerer to remove the stem from the frame - next I'll slot the steerer to release the stem.

Much more common is to cut the stem to release the fork.

Good call in this instance because the fork steerer is bent, and the bearings had been Groovin' the steerer just above the crown race, in a life- threatening manner.

I quite like the little "lever cozys" and hope to find them a new home.
The levers and bars are also destined for the big smelter in the sky, or Avonmouth, whichever is nearer.

 

[pwebb]

View attachment 902817Reductio ad valorem
...as we say in Wales

Note i cut the fork steerer to remove the stem from the frame - next I'll slot the steerer to release the stem.

Much more common is to cut the stem to release the fork.

Good call in this instance because the fork steerer is bent, and the bearings had been Groovin' the steerer just above the crown race, in a life- threatening manner.

I quite like the little "lever cozys" and hope to find them a new home.
The levers and bars are also destined for the big smelter in the sky, or Avonmouth, whichever is nearer.

interested in "next I'll slot the steerer to release the stem." -and how successful or not this is - I have just given up on a 531 fork with aluminium quill stem 'fused' into the steerer along its entire length - I cut the quill stem to release the fork from frame but none of my usual techniques for releasing the quill stem had any effect whatsoever - I have since fitted an alternative steerer but it was struggle to find one long enough for the frame head tube and also isnt 531

 

[bikeworkshop]

interested in "next I'll slot the steerer to release the stem." -and how successful or not this is - I have just given up on a 531 fork with aluminium quill stem 'fused' into the steerer along its entire length - I cut the quill stem to release the fork from frame but none of my usual techniques for releasing the quill stem had any effect whatsoever - I have since fitted an alternative steerer but it was struggle to find one long enough for the frame head tube and also isnt 531

The stem will be well swollen in the steerer and likely impossible to remove mechanically.
It can be slotted a couple of times, but I usually get them out with Caustic soda - it's easy enough by just dunking the steerer into a bucket of strong solution 1:4.

Cheap And Nasty!

Read and follow the warnings!

 

[bikeworkshop]

Cut the steerer with a disc
Once the steel was thin it split along the groove - pictured.
The stem then came out as expected
Stem free!
Bar also in the scrap, bent and gouged

 

[Canuk]

View attachment 905658
Cut the steerer with a disc
Once the steel was thin it split along the groove - pictured.
The stem then came out as expected

Interesting .. I've got what looks like an ITM titanium stem fused into a steel Colnago fork on an old Super. I've not killed at it even in about 5 years... Any ideas? Titanium must rust also...

 

[bikeworkshop]

It's a small amount of oxide corrosion filling the gap between the two.
You could try soaking it in something that dissolves either iron oxide or titanium oxide, but not steel or ti alloy.
Leave it a couple of months to penetrate.

I'd research ammonia 1st but could easily be wrong.

 

[Guinessisgoodforyou]

No Ti does not rust. On contact with air it forms an oxide layer.