If you are in Britain and can find a Raliegh Burner or some of the
first Raleigh MTBs like Mustangs from the 80's they have a large
headset and bearings but a standard size steerer tube with a BMX size
21.1mm stem. These fit on an oversize MTB as I have tried it.



--- In Pacific_Coast_Choppers@..., t.flaxman@n... wrote:
>
> --------------------------------------------------------------------
-----------------------------------
> >
> > Quoting Alec <alecsmail@h...>:
> >> There is a piece of rubber in the sliders with a
> >> threaded part in side it. So all you would need is longer tubes
with
> >> a washer SECURELY welded on to it to make your new stanchions.
> --------------------------------------------------------------------
-----------------------------------
>
> for Make,
>
> http://www.mtb-bikes.com/MBLANKRST_files/RST.jpg
>
> the fork tubes basically. chopper forks into suspension forks
anyone?
>
> ..Tone..
>
> ONGOING RESEARCH UPDATE:
>
> on a similar note, while experimenting in the top secret R+D
> bunker (my back room) i found that you could convert a 1" unthreaded
> headset to 1 1/8" threaded head with a hack saw and a hammer.
>
> what you need is a spare set of 1 1/18" forks, some cheap standard
> old MTB jobbies should do, CHECK THE INNER DIAMETER! it should
> be 25.4mm check on the quill neck for numbers. cut this through
below
> the bottom bearing cup, it's easy to see where, bear in mind you
need
> to keep the part for bearing cup fitment, anyways. once this is
hacked
> you
> should have a nice 1 1/8 tube with a bearing cup at one end, check
> the cut end and file off any sharp pain inflicting burs, refit this
into
> the
> headset of your frame bearings, cups, nuts, the lot, and then give
the
> 1" stem a slight lube and tap into the inside of the headset until
the
> base
> is flush with the cut tube, you should have plently of new tube
above
> the threaded nuts at the top to fit your bar clamps and such.
>
> i hope that makes some sense :)
>
> i wondered about this due to lack of 1 1/8" to 1" head set
conversion.
>
> to take it further you can also get inserts to convert 1.5" to 1
1/8"
> heads
> from any half decent bike shop, so technically you should be able to
> fit a 1" triple tree fork set to a chunky 1.5" trials frame. well,
> that's the
> plan anyway. now if those bastards would just stop outbidding me on
> ebay -hah-
>
> ..Tone..
>
> __________________________________________________________