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Date: 10 Aug 2007 14:52:13
From: Bellsouth Ijit 2.0 - Global Warming Edition ®
Subject: schwinn cruiser headtube size?
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I got this brand new Schwinn Cruiser Six frameset from maybe late 90s. The
headtube seems to be 1 1/8" (it ain't 1" for sure), and the frok that came
with it is a 1" fork (WTF?). I try to install 1 1/8" headset cups, and they
seem to be too big, as the edges of the headtube start bulging out slightly.
Did Schwinn have a proprietory headtube size for their cruisers? Is there a
size between 1" and 1 1/8" and if so, who makes headsets for that? TIA.
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Date: 11 Aug 2007 07:36:07
From: Chalo
Subject: Re: schwinn cruiser headtube size?
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Bellsouth Ijit wrote:
>
> I try to install 1 1/8" headset cups, and they
> seem to be too big, as the edges of the headtube start bulging out slightly.
If yo have bollixed your frame such that the corrct BMX size cups
won't work right, you may be able to use a 1-1/8" headset reamer to
prep your frame for a 1-1/8" fork. If the head tube measures close to
1.50" on the outside diameter, as many American frames do, there will
still be plenty of wall thickness left-- about 2.0mm. You want to
have at least 1.5mm there.
I've done this a few times with cruisers and trikes.
Chalo
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Date: 11 Aug 2007 07:27:17
From: Chalo
Subject: Re: schwinn cruiser headtube size?
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On Aug 10, 11:08 pm, A Muzi <a...@yellowjersey.org > wrote:
> Bellsouth Ijit 2.0 - Global Warming Edition =AE wrote:
>
> > I got this brand new Schwinn Cruiser Six frameset from maybe late 90s. =
The
> > headtube seems to be 1 1/8" (it ain't 1" for sure), and the frok that c=
ame
> > with it is a 1" fork (WTF?). I try to install 1 1/8" headset cups, and=
they
> > seem to be too big, as the edges of the headtube start bulging out slig=
htly.
> > Did Schwinn have a proprietory headtube size for their cruisers? Is th=
ere a
> > size between 1" and 1 1/8" and if so, who makes headsets for that? TIA.
>
> Ttraditioal "USA" or "BMX" headsets are still used on some cruisers,
> lowriders etc. Cup bore 33.2 and thread 1" x24
I thought it was 32.7mm frame bores.
Older American forks have thicker-walled steer tubes, so stem quills
for them are 21.1mm in diameter instead of 22.2mm, with small-bored
headset locknuts to match.
Dia-Compe makes a 1" threadless headset in the BMX size. Odyssey and
Problem Solvers have both made sleeves that adapt 1" ISO headsets to
American frames.
Chalo
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Date: 11 Aug 2007 10:34:49
From: A Muzi
Subject: Re: schwinn cruiser headtube size?
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>> Bellsouth Ijit 2.0 - Global Warming Edition ® wrote:
>>> I got this brand new Schwinn Cruiser Six frameset from maybe late 90s. The
>>> headtube seems to be 1 1/8" (it ain't 1" for sure), and the frok that came
>>> with it is a 1" fork (WTF?). I try to install 1 1/8" headset cups, and they
>>> seem to be too big, as the edges of the headtube start bulging out slightly.
>>> Did Schwinn have a proprietory headtube size for their cruisers? Is there a
>>> size between 1" and 1 1/8" and if so, who makes headsets for that? TIA.
> A Muzi <a...@yellowjersey.org> wrote:
>> Traditioal "USA" or "BMX" headsets are still used on some cruisers,
>> lowriders etc. Cup bore 33.2 and thread 1" x24
Chalo wrote:
> I thought it was 32.7mm frame bores.
>
> Older American forks have thicker-walled steer tubes, so stem quills
> for them are 21.1mm in diameter instead of 22.2mm, with small-bored
> headset locknuts to match.
>
> Dia-Compe makes a 1" threadless headset in the BMX size. Odyssey and
> Problem Solvers have both made sleeves that adapt 1" ISO headsets to
> American frames.
Chalo's right, 33.7. I just looked that up. Yesterday I measured a cup
from a $10 headset. Besides Chalo's suggestions, standard cheap BMX
headsets abound, unchanged for some 50+ years.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971
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Date: 13 Aug 2007 15:40:49
From: Bellsouth Ijit 2.0 - Global Warming Edition ®
Subject: Re: schwinn cruiser headtube size?
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"A Muzi" <am@yellowjersey.org > wrote in message
news:13brlo8jijt844e@corp.supernews.com...
>>> Bellsouth Ijit 2.0 - Global Warming Edition ® wrote:
>>>> I got this brand new Schwinn Cruiser Six frameset from maybe late 90s.
>>>> The
>>>> headtube seems to be 1 1/8" (it ain't 1" for sure), and the frok that
>>>> came
>>>> with it is a 1" fork (WTF?). I try to install 1 1/8" headset cups, and
>>>> they
>>>> seem to be too big, as the edges of the headtube start bulging out
>>>> slightly.
>>>> Did Schwinn have a proprietory headtube size for their cruisers? Is
>>>> there a
>>>> size between 1" and 1 1/8" and if so, who makes headsets for that?
>>>> TIA.
>
>> A Muzi <a...@yellowjersey.org> wrote:
>>> Traditioal "USA" or "BMX" headsets are still used on some cruisers,
>>> lowriders etc. Cup bore 33.2 and thread 1" x24
>
> Chalo wrote:
>> I thought it was 32.7mm frame bores.
>>
>> Older American forks have thicker-walled steer tubes, so stem quills
>> for them are 21.1mm in diameter instead of 22.2mm, with small-bored
>> headset locknuts to match.
>>
>> Dia-Compe makes a 1" threadless headset in the BMX size. Odyssey and
>> Problem Solvers have both made sleeves that adapt 1" ISO headsets to
>> American frames.
>
> Chalo's right, 33.7. I just looked that up. Yesterday I measured a cup
> from a $10 headset. Besides Chalo's suggestions, standard cheap BMX
> headsets abound, unchanged for some 50+ years.
> --
> Andrew Muzi
> www.yellowjersey.org
> Open every day since 1 April, 1971
Thanks. I looked up bikepartsusa.com, and their bmx headset cup is 32.5mm.
http://www.bikepartsusa.com/product_info.asp?p=01%2D80091 I'm confused.
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Date: 13 Aug 2007 15:55:33
From: A Muzi
Subject: Re: schwinn cruiser headtube size?
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Bellsouth Ijit 2.0 - Global Warming Edition ® wrote:
>>>>> I got this brand new Schwinn Cruiser Six frameset from maybe late 90s.
>>>>> The
>>>>> headtube seems to be 1 1/8" (it ain't 1" for sure), and the frok that
>>>>> came
>>>>> with it is a 1" fork (WTF?). I try to install 1 1/8" headset cups, and
>>>>> they
>>>>> seem to be too big, as the edges of the headtube start bulging out
>>>>> slightly.
>>>>> Did Schwinn have a proprietory headtube size for their cruisers? Is
>>>>> there a
>>>>> size between 1" and 1 1/8" and if so, who makes headsets for that?
-snip various contributions-
> Thanks. I looked up bikepartsusa.com, and their bmx headset cup is 32.5mm.
> http://www.bikepartsusa.com/product_info.asp?p=01%2D80091 I'm confused.
Probably just what you need. You might call them to confirm but frankly
$10 headsets are not as close a tolerance as bearings in jet engines. At
40% off, you can't lose much! Maybe they measured with one of those
cute little plastic toy calipers?
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971
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Date: 13 Aug 2007 19:46:32
From: Bellsouth Ijit 2.0 - Global Warming Edition ®
Subject: Re: schwinn cruiser headtube size?
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"A Muzi" <am@yellowjersey.org > wrote in message
news:13c1h9r5p3mtve6@corp.supernews.com...
> Bellsouth Ijit 2.0 - Global Warming Edition ® wrote:
>>>>>> I got this brand new Schwinn Cruiser Six frameset from maybe late
>>>>>> 90s. The
>>>>>> headtube seems to be 1 1/8" (it ain't 1" for sure), and the frok that
>>>>>> came
>>>>>> with it is a 1" fork (WTF?). I try to install 1 1/8" headset cups,
>>>>>> and they
>>>>>> seem to be too big, as the edges of the headtube start bulging out
>>>>>> slightly.
>>>>>> Did Schwinn have a proprietory headtube size for their cruisers? Is
>>>>>> there a
>>>>>> size between 1" and 1 1/8" and if so, who makes headsets for that?
> -snip various contributions-
>> Thanks. I looked up bikepartsusa.com, and their bmx headset cup is
>> 32.5mm. http://www.bikepartsusa.com/product_info.asp?p=01%2D80091 I'm
>> confused.
>
> Probably just what you need. You might call them to confirm but frankly
> $10 headsets are not as close a tolerance as bearings in jet engines. At
> 40% off, you can't lose much! Maybe they measured with one of those cute
> little plastic toy calipers?
> --
> Andrew Muzi
> www.yellowjersey.org
> Open every day since 1 April, 1971
Heh. Will do. Thanks again.
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Date: 10 Aug 2007 23:08:01
From: A Muzi
Subject: Re: schwinn cruiser headtube size?
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Bellsouth Ijit 2.0 - Global Warming Edition ® wrote:
> I got this brand new Schwinn Cruiser Six frameset from maybe late 90s. The
> headtube seems to be 1 1/8" (it ain't 1" for sure), and the frok that came
> with it is a 1" fork (WTF?). I try to install 1 1/8" headset cups, and they
> seem to be too big, as the edges of the headtube start bulging out slightly.
> Did Schwinn have a proprietory headtube size for their cruisers? Is there a
> size between 1" and 1 1/8" and if so, who makes headsets for that? TIA.
Ttraditioal "USA" or "BMX" headsets are still used on some cruisers,
lowriders etc. Cup bore 33.2 and thread 1" x24
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971
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