Is this a bodge?

[Stick Legs]

I have a set of forks with a bonded steerer, this makes them unable to be lengthed by a frame builder.

They are not worth much, but I wanted to run them on a hack bike and the steerer is too short.

I got a quill stem adaptor and inserted it into the forks, then checking that the aheadset upper race and wedge collar were above the level of the threads in the forks put a stem on. I put the star fangled nut into the quill adaptor recess and then tightened the whole shebang up.

Assuming the quill never comes loose it should be able to stay like that.

I always assumed these quill adaptors were to adapt ahead stems to run with threaded headsets, is it really a massive bodge to make them run threaded forks with aheadset or am I being precious!

 

[letmetalktomark]

Pete,

This will only end in tears.....or in STW speak you will die :shock:








Should be fine but I would always be worried about the quill piece coming loose.........

The BBB steerer extenders are only meant for road use, if that is in deed the one you are using?

 

[Stick Legs]

I'm using an ID 1 1/8" to 1 1/8" apator.

I threadlocked the expander wedge bolt, but coppa-slipped the quill into the fork.

The whole peice is very sturdy, so my concern is not that it will break, after all the fork extends beyond the upper races of the headset, the adaptor is only holding the stem on, I was more concerned about the ethics than safety.

Actually having written this and thought it through I'm sure it will be fine.

The only bodgy bit was putting a starfangled nut into the recess of the quill adaptor.

 

[mikee]

ran bikes with this done for a while
no issues

 

[IDB1]

Give it some gentle-ish testing and see if it falls apart/breaks or you die... if the latter, get it done properly before you go back out on it

 

[was8v]

Only issue I can think of is that the upper headset race may be slightly out of alignment due to the extension not being perfectly inline with the steerer tube.

 

[Ziggy]

Give it some gentle-ish testing and see if it falls apart/breaks or you die... if the latter, get it done properly before you go back out on it

The latter being 'or you die'?!

 

[IDB1]

Give it some gentle-ish testing and see if it falls apart/breaks or you die... if the latter, get it done properly before you go back out on it

The latter being 'or you die'?!

 

[was8v]

double post

 

[was8v]

Thought this through again, and another problem I can think of it that you may have a constantly loosening headset.

The quill may "pull out" of the steerer a little over time leading to a loose headset.

Of course now you have an SFN in there you are never getting that quill adapter back out! (or be able to tighten it!).