Presta Valve Stem Question



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9

98gtw

Guest
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I bought some new tubes recently (on e-bay) that have smooth, long valve = stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts to = lock them to the rim.=20

Can I use these without some mechanism to lock them to the rim? If not, = what part or piece
do I need?

Thanks.=20

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Content-Transfer-Encoding: quoted-printable

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<DIV><FONT face=3DArial size=3D2><FONT size=3D2>
<DIW>I bought some new tubes recently (on e-bay) that have smooth, long = valve=20 stems</P>
<DIX><A=20 href=3D"http://www.netacc.net/~helarson/">http://www.netacc.net/~helarson= /</A></P>
<DIY>(crudely-built site alert ;-) )</P>
<DIZ>Never seen anything quite like them. My present tubes have small nuts = to lock=20 them to
the rim. </P>
<DIZ><BR>Can I use these without some mechanism to lock them to the rim? = If not,=20 what part or
piece do I need?</P>
<DIZ>Thanks. </P></FONT></FONT></DIV></BODY></HTML>

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9

98gtw

Guest
This is a multi-part message in MIME format.

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Content-Transfer-Encoding: quoted-printable

I bought some new tubes recently (on e-bay) that have smooth, long valve = stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts to = lock them to the rim.=20

Can I use these without some mechanism to lock them to the rim? If not, = what part or piece
do I need?

Thanks.=20

------=_NextPart_000_0011_01C2BB9F.9EA2AA90 Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META
http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML
5.50.4912.300" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY>
<DIV><FONT face=3DArial size=3D2><FONT size=3D2>
<DIW>I bought some new tubes recently (on e-bay) that have smooth, long = valve=20 stems</P>
<DIX><A=20 href=3D"http://www.netacc.net/~helarson/">http://www.netacc.net/~helarson= /</A></P>
<DIY>(crudely-built site alert ;-) )</P>
<DIZ>Never seen anything quite like them. My present tubes have small nuts = to lock=20 them to
the rim. </P>
<DIZ><BR>Can I use these without some mechanism to lock them to the rim? = If not,=20 what part or
piece do I need?</P>
<DIZ>Thanks. </P></FONT></FONT></DIV></BODY></HTML>

------=_NextPart_000_0011_01C2BB9F.9EA2AA90--
 
M

Mikael Seierup

Guest
"98GTW" skrev...
>Can I use these without some mechanism to lock them to the rim? If not, what part or piece do I
need?

I did on my bike. Just slightly annoying to pump.

M.
 
M

Mikael Seierup

Guest
"98GTW" skrev...
>Can I use these without some mechanism to lock them to the rim? If not, what part or piece do I
need?

I did on my bike. Just slightly annoying to pump.

M.
 
J

Jim H

Guest
Couldn't see the picture - in your HTML the .jpg has a hard-coded path to an "E:" drive.

"98GTW" <[email protected]> wrote in message news:[email protected]... I bought some new
tubes recently (on e-bay) that have smooth, long valve stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts to lock them to the rim.

Can I use these without some mechanism to lock them to the rim? If not, what part or piece
do I need?

Thanks.
 
J

Jim H

Guest
Couldn't see the picture - in your HTML the .jpg has a hard-coded path to an "E:" drive.

"98GTW" <[email protected]> wrote in message news:[email protected]... I bought some new
tubes recently (on e-bay) that have smooth, long valve stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts to lock them to the rim.

Can I use these without some mechanism to lock them to the rim? If not, what part or piece
do I need?

Thanks.
 
E

Eugene Cottrell

Guest
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These stems are long enough ( 2" )that they are probably made for aero = rims. Regardless, the nuts
on presta valves serve no useful purpose and = make the probability of getting a pinch flat much
greater if the nut is = tightened when you first pump the tire up. To pump the tire up from a = flat
condition, just hold the stem out through the hole with one thumb = pressing the tread of the tire
as you attach the pump to the valve with = the other hand. (man, that's easier to do than explain) I
can send you = a picture if necessary.

Gene

"98GTW" <[email protected]> wrote in message = news:[email protected]... I bought some
new tubes recently (on e-bay) that have smooth, long = valve stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts = to lock them to
the rim.=20

Can I use these without some mechanism to lock them to the rim? If = not, what part or piece
do I need?

Thanks.=20

------=_NextPart_000_0043_01C2BBE4.CD453E40 Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META
http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML
6.00.2719.2200" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff>
<DIV><FONT face=3D"Courier New" size=3D2>These stems are long enough ( = 2" )that they=20 are
probably made for aero rims. Regardless, the nuts on = presta=20 valves serve no
useful purpose and make the probability of getting a = pinch flat=20 much greater if the nut
is tightened when you first pump the tire = up. To=20 pump the tire up from a flat
condition, just hold the stem out = through the=20 hole with one
thumb pressing the tread of the tire as you = attach=20 the pump to the valve with
the other hand. (man, that's easier to = do than=20 explain) I can send you a
picture if necessary.</FONT></DIV>
<DV><FONT face=3D"Courier New" size=3D2></FONT> </DIV>
<DVI><FONT face=3D"Courier New" size=3D2>Gene</FONT></DIV>
<DVII><FONT face=3D"Courier New" size=3D2></FONT> </DIV>
<DVIII> </DIV>
<DIX> </DIV>
<DX>"98GTW" <<A=20 href=3D"mailto:[email protected]">[email protected]</A>> wrote in =
message=20 <A=20 href=3D"news:[email protected]">news:[email protected]<=
/A>...</DIV> <BLOCKQUOTE dir=3Dltr=20 style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px;
MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV><FONT face=3DArial size=3D2><FONT size=3D2>
<DIW>I bought some new tubes recently (on e-bay) that have smooth, long = valve=20 stems</P>
<DIX><A=20
=
href=3D"http://www.netacc.net/~helarson/">http://www.netacc.net/~helarson= /</A></P>
<DIY>(crudely-built site alert ;-) )</P>
<DIZ>Never seen anything quite like them. My present tubes have small = nuts to=20 lock them to
the rim. </P>
<DIZ><BR>Can I use these without some mechanism to lock them to the rim? = If not,=20 what part or
piece do I need?</P>
<DIZ>Thanks. </P></FONT></FONT></DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_0043_01C2BBE4.CD453E40--
 
E

Eugene Cottrell

Guest
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These stems are long enough ( 2" )that they are probably made for aero = rims. Regardless, the nuts
on presta valves serve no useful purpose and = make the probability of getting a pinch flat much
greater if the nut is = tightened when you first pump the tire up. To pump the tire up from a = flat
condition, just hold the stem out through the hole with one thumb = pressing the tread of the tire
as you attach the pump to the valve with = the other hand. (man, that's easier to do than explain) I
can send you = a picture if necessary.

Gene

"98GTW" <[email protected]> wrote in message = news:[email protected]... I bought some
new tubes recently (on e-bay) that have smooth, long = valve stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts = to lock them to
the rim.=20

Can I use these without some mechanism to lock them to the rim? If = not, what part or piece
do I need?

Thanks.=20

------=_NextPart_000_0043_01C2BBE4.CD453E40 Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META
http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML
6.00.2719.2200" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff>
<DIV><FONT face=3D"Courier New" size=3D2>These stems are long enough ( = 2" )that they=20 are
probably made for aero rims. Regardless, the nuts on = presta=20 valves serve no
useful purpose and make the probability of getting a = pinch flat=20 much greater if the nut
is tightened when you first pump the tire = up. To=20 pump the tire up from a flat
condition, just hold the stem out = through the=20 hole with one
thumb pressing the tread of the tire as you = attach=20 the pump to the valve with
the other hand. (man, that's easier to = do than=20 explain) I can send you a
picture if necessary.</FONT></DIV>
<DV><FONT face=3D"Courier New" size=3D2></FONT> </DIV>
<DVI><FONT face=3D"Courier New" size=3D2>Gene</FONT></DIV>
<DVII><FONT face=3D"Courier New" size=3D2></FONT> </DIV>
<DVIII> </DIV>
<DIX> </DIV>
<DX>"98GTW" <<A=20 href=3D"mailto:[email protected]">[email protected]</A>> wrote in =
message=20 <A=20 href=3D"news:[email protected]">news:[email protected]<=
/A>...</DIV> <BLOCKQUOTE dir=3Dltr=20 style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px;
MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV><FONT face=3DArial size=3D2><FONT size=3D2>
<DIW>I bought some new tubes recently (on e-bay) that have smooth, long = valve=20 stems</P>
<DIX><A=20
=
href=3D"http://www.netacc.net/~helarson/">http://www.netacc.net/~helarson= /</A></P>
<DIY>(crudely-built site alert ;-) )</P>
<DIZ>Never seen anything quite like them. My present tubes have small = nuts to=20 lock them to
the rim. </P>
<DIZ><BR>Can I use these without some mechanism to lock them to the rim? = If not,=20 what part or
piece do I need?</P>
<DIZ>Thanks. </P></FONT></FONT></DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_0043_01C2BBE4.CD453E40--
 
9

98gtw

Guest
This is a multi-part message in MIME format.

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I verified the pump works just fine last night. The information about = the use of the "locknut" was
also very helpful.

I suppose I now <must> go buy some aero rims! :) Dave

"98GTW" <[email protected]> wrote in message = news:[email protected]... I bought some
new tubes recently (on e-bay) that have smooth, long = valve stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts = to lock them to
the rim.=20

Can I use these without some mechanism to lock them to the rim? If = not, what part or piece
do I need?

Thanks.=20

------=_NextPart_000_001F_01C2BC64.E607AF50 Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META
http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML
5.50.4912.300" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I verified the pump works just = fine last=20 night. The
information about the use of the "locknut" was also very=20 helpful.</FONT></DIV>
<DV><FONT face=3DArial size=3D2></FONT> </DIV>
<DVI><FONT face=3DArial size=3D2>I suppose I now <must> go buy = some aero=20 rims!
<STRONG><FONT size=3D4>:)</FONT></STRONG></FONT></DIV>
<DVII><STRONG><FONT face=3DArial size=3D4>Dave</FONT></STRONG></DIV> <BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px
solid; MARGIN-RIGHT: 0px">
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIW>"98GTW" <<A=20 href=3D"mailto:[email protected]">[email protected]</A>> wrote = in
message=20 <A=20
=
href=3D"news:[email protected]">news:[email protected]<= /A>...</DIV>
<DIX><FONT face=3DArial size=3D2><FONT size=3D2>
<DIY>I bought some new tubes recently (on e-bay) that have smooth, long = valve=20 stems</P>
<DIZ><A=20
=
href=3D"http://www.netacc.net/~helarson/">http://www.netacc.net/~helarson= /</A></P>
<DIZ>(crudely-built site alert ;-) )</P>
<DIZ>Never seen anything quite like them. My present tubes have small = nuts to=20 lock them to
the rim. </P>
<DIZ><BR>Can I use these without some mechanism to lock them to the rim? = If not,=20 what part or
piece do I need?</P>
<DIZ>Thanks. </P></FONT></FONT></DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_001F_01C2BC64.E607AF50--
 
9

98gtw

Guest
This is a multi-part message in MIME format.

------=_NextPart_000_001F_01C2BC64.E607AF50 Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I verified the pump works just fine last night. The information about = the use of the "locknut" was
also very helpful.

I suppose I now <must> go buy some aero rims! :) Dave

"98GTW" <[email protected]> wrote in message = news:[email protected]... I bought some
new tubes recently (on e-bay) that have smooth, long = valve stems

http://www.netacc.net/~helarson/

(crudely-built site alert ;-) )

Never seen anything quite like them. My present tubes have small nuts = to lock them to
the rim.=20

Can I use these without some mechanism to lock them to the rim? If = not, what part or piece
do I need?

Thanks.=20

------=_NextPart_000_001F_01C2BC64.E607AF50 Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META
http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML
5.50.4912.300" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I verified the pump works just = fine last=20 night. The
information about the use of the "locknut" was also very=20 helpful.</FONT></DIV>
<DV><FONT face=3DArial size=3D2></FONT> </DIV>
<DVI><FONT face=3DArial size=3D2>I suppose I now <must> go buy = some aero=20 rims!
<STRONG><FONT size=3D4>:)</FONT></STRONG></FONT></DIV>
<DVII><STRONG><FONT face=3DArial size=3D4>Dave</FONT></STRONG></DIV> <BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px
solid; MARGIN-RIGHT: 0px">
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIW>"98GTW" <<A=20 href=3D"mailto:[email protected]">[email protected]</A>> wrote = in
message=20 <A=20
=
href=3D"news:[email protected]">news:[email protected]<= /A>...</DIV>
<DIX><FONT face=3DArial size=3D2><FONT size=3D2>
<DIY>I bought some new tubes recently (on e-bay) that have smooth, long = valve=20 stems</P>
<DIZ><A=20
=
href=3D"http://www.netacc.net/~helarson/">http://www.netacc.net/~helarson= /</A></P>
<DIZ>(crudely-built site alert ;-) )</P>
<DIZ>Never seen anything quite like them. My present tubes have small = nuts to=20 lock them to
the rim. </P>
<DIZ><BR>Can I use these without some mechanism to lock them to the rim? = If not,=20 what part or
piece do I need?</P>
<DIZ>Thanks. </P></FONT></FONT></DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_001F_01C2BC64.E607AF50--
 
C

Charles Gaffen

Guest
Basically Gene is saying to hold onto the stem until you can get the pump head as far down the stem
as possible. Lock it in place and pump. I have had plenty of these tubes and they are just fine.
Only thing is if your gasket/o-ring on the pump head is worn, it may slip off. Chas
 
C

Charles Gaffen

Guest
Basically Gene is saying to hold onto the stem until you can get the pump head as far down the stem
as possible. Lock it in place and pump. I have had plenty of these tubes and they are just fine.
Only thing is if your gasket/o-ring on the pump head is worn, it may slip off. Chas
 
D

Dave Is Here

Guest
Hi Cletus Smooth Presta valve stems are a standard Michelin part. I use them in both long and short
stem 622s Here is a pic of the part. www.doctorvision.com/bikee/michelintube.jpg

The valve stem is replaceable, although a new tube can be had for $4-5.

Dave Balfour

Cletus D. Lee <[email protected]> replied> > >
> I've never seen any 'threadless' Presta valves. I have some Schwalbe tubes that are only threaded
> near the rim. An inflated tube will maintain its position without a locking nut. If your (road)
> pump can inflate it to a sufficient pressure without slipping off, I'd say do not concern
> yourself with trivial issues like threaded valve stems.
 
D

Dave Is Here

Guest
Hi Cletus Smooth Presta valve stems are a standard Michelin part. I use them in both long and short
stem 622s Here is a pic of the part. www.doctorvision.com/bikee/michelintube.jpg

The valve stem is replaceable, although a new tube can be had for $4-5.

Dave Balfour

Cletus D. Lee <[email protected]> replied> > >
> I've never seen any 'threadless' Presta valves. I have some Schwalbe tubes that are only threaded
> near the rim. An inflated tube will maintain its position without a locking nut. If your (road)
> pump can inflate it to a sufficient pressure without slipping off, I'd say do not concern
> yourself with trivial issues like threaded valve stems.
 
C

Cletus D . Lee

Guest
In article <[email protected]>, [email protected] says...
> Hi Cletus Smooth Presta valve stems are a standard Michelin part. I use them in both long and
> short stem 622s Here is a pic of the part. www.doctorvision.com/bikee/michelintube.jpg

leave it to the french to find a way to be different.
--

Cletus D. Lee Bacchetta Giro Lightning Voyager http://www.clee.org
- Bellaire, TX USA -
 
C

Cletus D . Lee

Guest
In article <[email protected]>, [email protected] says...
> Hi Cletus Smooth Presta valve stems are a standard Michelin part. I use them in both long and
> short stem 622s Here is a pic of the part. www.doctorvision.com/bikee/michelintube.jpg

leave it to the french to find a way to be different.
--

Cletus D. Lee Bacchetta Giro Lightning Voyager http://www.clee.org
- Bellaire, TX USA -
 
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