Threading of threadless fork?

[Jesper Rasmusse]

Hi!

I'm looking for a rigid threaded 1" fork for my old Klein Pinnacle but unfortunately they are not
easy to find ( Would it be possible to buy a 1" aheadset fork and have threads cut into the
steerer and use instead? I'll prefer not having to replace my headset as it is a very nice Syncros
Hardcore from "back then" ;o)

--
/Jesper

Mail sent to "From address" will not be read! Use "news(at)jronline(dot)dk"

 

[Mrbubl]

check www.ebay.com as they have some to choose from and your local bike shop should have tools to do
the job right if you cannot find one.

"Jesper Rasmussen" <[email protected]> wrote in message news:[email protected]
berlin.de...
> Hi!
>
> I'm looking for a rigid threaded 1" fork for my old Klein Pinnacle but unfortunately they are not
> easy to find ( Would it be possible to buy a 1" aheadset fork and have threads cut into the
> steerer and use instead? I'll prefer not having to replace my headset as it is a very nice Syncros
> Hardcore from "back then" ;o)
>
> --
> /Jesper
>
> Mail sent to "From address" will not be read! Use "news(at)jronline(dot)dk"

 

[Jesper Rasmusse]

On Tue, 02 Mar 2004 20:39:25 GMT, mrbubl wrote:

> check www.ebay.com as they have some to choose from and your local bike shop should have tools to
> do the job right if you cannot find one.
>

Is this a "Yes you can get a threadless fork and have it threaded" answer?

I'm in Denmark, Europe, and unfortunately the selection of used (or new) 1" forks isn't as wide as
in the US ( and buying one off ebay isn't realistic be cause of the shipping fees...

--
/Jesper

Mail sent to "From address" will not be read! Use "news(at)jronline(dot)dk"

 

[Desert Rat]

> I'm looking for a rigid threaded 1" fork for my old Klein Pinnacle but unfortunately they are not
> easy to find ( Would it be possible to buy a 1" aheadset fork and have threads cut into the
> steerer and use instead? I'll prefer not having to replace my headset as it is a very nice Syncros
> Hardcore from "back then" ;o)
>
> --
> /Jesper

Well, anything is possible. I'd be careful since it seems as though a lot of forks are made with
aluminum steerer tubes now. That would make for easy thread cutting, but I don't think it would last
too long. I'd probably just drop some money on a headset from "now".

If you post to rec.bicycles.tech you'll probably get more answers on this.

-Derek

 

[Mark Hickey]

Jesper Rasmussen <[email protected]> wrote:

>I'm looking for a rigid threaded 1" fork for my old Klein Pinnacle but unfortunately they are not
>easy to find ( Would it be possible to buy a 1" aheadset fork and have threads cut into the
>steerer and use instead? I'll prefer not having to replace my headset as it is a very nice Syncros
>Hardcore from "back then" ;o)

You'll have to be careful for a variety of reasons (some financial, some dental...).

1) Not all threadless steer tubes have the same inside diameter as a threaded steer tube. If this is
the case, your stem won't go in.
2) Cutting threads in a virgin steer tube is difficult, particularly starting them straight. You
might end up with a hosed up fork.
3) It's possible that the steer tube will be weakened by the cutting process, and that a stress
riser (place where normal stresses are concentrated to a dangerous level) will be formed. This
would be a Bad Thing[tm]

There should be a LOT of old 1" rigid forks out there in the dusty corners of bike shops, since a
LOT of older MTBs with 1" head tubes were shipped with rigid forks and upgraded to shock forks.
Ask around
- I'll bet you find one.

OR you can buy a new Tange "Basic Mountain Fork" in a 1" threaded version for under $50! That would
probably be the way to go.

Mark Hickey Habanero Cycles http://www.habcycles.com Home of the $695 ti frame

 

[Chris Phillipo]

In article <[email protected]>, [email protected] says...
> Hi!
>
> I'm looking for a rigid threaded 1" fork for my old Klein Pinnacle but unfortunately they are not
> easy to find ( Would it be possible to buy a 1" aheadset fork and have threads cut into the
> steerer and use instead? I'll prefer not having to replace my headset as it is a very nice Syncros
> Hardcore from "back then" ;o)
>
>

No you can't, at least not safely. The walls are usually thinner and the inside diameter is not
right for a "wedgie" stem to clamp securely.
--
_________________________
Chris Phillipo - Cape Breton, Nova Scotia http://www.ramsays-online.com

 

[Duncan]

"Jesper Rasmussen" <[email protected]> wrote in message
news:[email protected]...
> Hi!
>
> I'm looking for a rigid threaded 1" fork for my old Klein Pinnacle but unfortunately they are not
> easy to find ( Would it be possible to buy a 1" aheadset fork and have threads cut into the
> steerer and use instead? I'll prefer not having to replace my headset as it is a very nice Syncros
> Hardcore from "back then" ;o)

It's much easier to take the thread off the headset. I bought an XT headset with the thread already
removed, I then had the situation where I wanted to be able to switch forks very quickly with
another bike but the only compatible headsets were for threaded steerers. I bought an STX threaded
headset and just slowly and carefully ground the thread out. Seems to work fine.

 

[Jesper Rasmusse]

Thanks for the replies guys!

You all have some very good points for not threading a threadless fork so I'll just get a used
threaded one. And yes - there should be a lot of them out there.

--
/Jesper

Mail sent to "From address" will not be read! Use "news(at)jronline(dot)dk"