Schrader or Presta

RE/

Quoted message said:

Which valve would you use?

When I got my first "20th century" bike my initial reaction upon seeing those skinny little Presta
valves was something "Whatinhell....what do we need another valve standard for anyhow..."

Now, after a few years, I'd say "Presta", hands down. Wouldn't even *think* about using Schraeders.
--
PeteCresswell

Per Elmsäter said:

On my Mavic UST rims I've noticed that I have an option of using either the Presta valve or a
Schrader adapter that screws onto the Presta valve. All my pumps can handle both valves and I
can't make up my mind which one to use. There are supposedly Pros and Cons for both. I use a SKS
CO2 pump on tour and a SKS floor pump at home. Which valve would you use?

Both; whichever is on sale or in stock.

But the Presta is a little easier to attach my pump head to.

--
Slacker

Quoted message said:

Now, after a few years, I'd say "Presta", hands down. Wouldn't even

*think*

Quoted message said:

about using Schraeders.
--
PeteCresswell

Uh , OK , Why not ? The only advantage I see with Prestas is the The hole size in the rims can be
smaller, alowing for a stronger more durable rim. If your rims have holes big enough for the
Schraeders , use the Schraeders .

Per Elmsäter said:

On my Mavic UST rims I've noticed that I have an option of using either the Presta valve or a
Schrader adapter that screws onto the Presta valve. All my pumps can handle both valves and I
can't make up my mind which one to use. There are supposedly Pros and Cons for both. I use a SKS
CO2 pump on tour and a SKS floor pump at home. Which valve would you use?

Maybe I wasn't clear enough. The Mavic X3.1 UST ( tubeless ) rim has a hole drilled in it for a
Presta valve. They also furnish a Presta valve that is not attached to a tube. You stick it throught
the double bottomed rim and it comes out just like any other Presta valve on the outside. But on the
inside it does not attach to anything. It is just held in place by the tight fit and some rubber
seals. BTW I would think this is were UST rims leak air and not between the rim and the tire.

Anyways. This Presta valve also comers with a Schrader adapter that you can screw ontop of the
Presta from the outside. If the Presta valve is opened before you screw it on you can inflate air
through it with any Schrader pump. If the Presta valve is closed you cannot inflate any air through
the Schrader.

My thoughts was that maybe I could find a CO2 pump head that can screw onto either the Presta valve
or the Schrader valve. Thus minimizing the amount of air that leaks out at the valve. I've seen ones
that screw onto a Schrader on internet. Or. Find a pumphead that was at least specialized for either
one and did not leak any air at the attachmnet point. It seems kinda uneccesary to have dual
function pump heads when they really don't fit very good. At least mine don't

--
Perre

You have to be smarter than a robot to reply.

use Presta I got no beefs with it. its faster, easyer to use and you can put
more pressure
"Per Elmsäter" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

On my Mavic UST rims I've noticed that I have an option of using either

the

Quoted message said:

Presta valve or a Schrader adapter that screws onto the Presta valve. All

my

Quoted message said:

pumps can handle both valves and I can't make up my mind which one to use. There are supposedly
Pros and Cons for both. I use a SKS CO2 pump on tour and a SKS floor pump at home. Which valve
would you use?

--
Perre

You have to be smarter than a robot to reply.

Presta.

Quoted message said:

Uh , OK , Why not ? The only advantage I see with Prestas is the The hole size in the

rims can

Quoted message said:

be smaller, alowing for a stronger more durable rim. If your rims

have holes

Quoted message said:

big enough for the Schraeders , use the Schraeders.

Presta valves are easier to inflate.

-John

RE/

Quoted message said:

Uh , OK , Why not ?

Pump goes on/off much easier.

When fixing flats, it's easier to deflate them.

The little screw-on rings keep the valve from disappearing into the carcass when it's really flat.

Nothing earth-shaking, but since the choice is there...in the immortal words of Alfred E Neuman:
"Whyyyyyy not?"
--
PeteCresswell

RE/

Quoted message said:

Uh , OK , Why not ?

Oh yeah...You can fit any Schreader pump to a presta valve via a little 99-cent screw-on brass
adapter - but I don't think it can be done the other way (i.e. usa a Presta pump on a Schrader valve
- probably moot, since most pumps I've seen have heads that go either way....although the $2.99 pump
my daughter's neighbor gave her does Schraeder-only...
--
PeteCresswell

I agree with you about the UST rims leaking air from the valve stem seal, I know that's where mine
leak. I have one that I've replaced the valve stem twice and it still leaks. I don't think using a
Schrader pump head will help anything. The valve should have a nut on the outside of the rim to hold
it in place.

"Per Elmsäter" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Per Elmsäter said:

On my Mavic UST rims I've noticed that I have an option of using either the Presta valve or a
Schrader adapter that screws onto the Presta valve. All my pumps can handle both valves and I
can't make up my mind which one to use. There are supposedly Pros and Cons for both. I use a SKS
CO2 pump on tour and a SKS floor pump at home. Which valve would you use?

Maybe I wasn't clear enough. The Mavic X3.1 UST ( tubeless ) rim has a hole drilled in it for a
Presta valve. They also furnish a Presta valve that is not attached to a tube.

You

Quoted message said:

stick it throught the double bottomed rim and it comes out just like any other Presta valve on
the outside. But on the inside it does not attach to anything. It is just held in place by the
tight fit and some rubber seals. BTW I would think this is were UST rims leak air and not
between the rim

and

Quoted message said:

the tire.

Anyways. This Presta valve also comers with a Schrader adapter that you

can

Quoted message said:

screw ontop of the Presta from the outside. If the Presta valve is opened before you screw it on
you can inflate air through it with any Schrader pump. If the Presta valve is closed you cannot
inflate any air through the Schrader.

My thoughts was that maybe I could find a CO2 pump head that can screw

onto

Quoted message said:

either the Presta valve or the Schrader valve. Thus minimizing the amount

of

Quoted message said:

air that leaks out at the valve. I've seen ones that screw onto a Schrader on internet. Or. Find a
pumphead that was at least specialized for either one and did

not

Quoted message said:

leak any air at the attachmnet point. It seems kinda uneccesary to have

dual

Quoted message said:

function pump heads when they really don't fit very good. At least mine don't

--
Perre

You have to be smarter than a robot to reply.

"di" <[email hidden]> wrote in message
news:HX4Kb.44880$HQ.24606@okepread02...

Quoted message said:

I agree with you about the UST rims leaking air from the valve stem seal,

I

Quoted message said:

know that's where mine leak. I have one that I've replaced the valve

stem

Quoted message said:

twice and it still leaks. I don't think using a Schrader pump head will help anything. The valve
should have a nut on the outside of the rim to hold it in place.

If your removable valve stem on a tubeless rim isn't locked down with a nut, your rimset is
incomplete.

Chris

In article <ml2Kb.26554$i55.23798@fed1read06>, [email hidden] says...

Quoted message said:

Quoted message said:

Uh , OK , Why not ? The only advantage I see with Prestas is the The hole size in the

rims can

Quoted message said:

be smaller, alowing for a stronger more durable rim. If your rims

have holes

Quoted message said:

big enough for the Schraeders , use the Schraeders.

Presta valves are easier to inflate.

-John

And much easier to deflate when it's time to roll up a tube and put it in your pack. I however, use
shraeder with no valve caps because I change the air pressure so often in winter it's just easier to
work with with gloves on.
--
_________________________
Chris Phillipo - Cape Breton, Nova Scotia ramsays-online.comramsays-online.comOpen ↗

di said:

I agree with you about the UST rims leaking air from the valve stem seal, I know that's where mine
leak. I have one that I've replaced the valve stem twice and it still leaks. I don't think using a
Schrader pump head will help anything. The valve should have a nut on the outside of the rim to
hold it in place.

Of course I have this nut. I just happened to forget about it when describing my setup. Which
pumphead do you use to inflate with?

Quoted message said:

"Per Elmsäter" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Per Elmsäter said:

On my Mavic UST rims I've noticed that I have an option of using either the Presta valve or a
Schrader adapter that screws onto the Presta valve. All my pumps can handle both valves and I
can't make up my mind which one to use. There are supposedly Pros and Cons for both. I use a SKS
CO2 pump on tour and a SKS floor pump at home. Which valve would you use?

Maybe I wasn't clear enough. The Mavic X3.1 UST ( tubeless ) rim has a hole drilled in it for a
Presta valve. They also furnish a Presta valve that is not attached to a tube. You stick it
throught the double bottomed rim and it comes out just like any other Presta valve on the
outside. But on the inside it does not attach to anything. It is just held in place by the tight
fit and some rubber seals. BTW I would think this is were UST rims leak air and not between the
rim and the tire.

Anyways. This Presta valve also comers with a Schrader adapter that you can screw ontop of the
Presta from the outside. If the Presta valve is opened before you screw it on you can inflate air
through it with any Schrader pump. If the Presta valve is closed you cannot inflate any air
through the Schrader.

My thoughts was that maybe I could find a CO2 pump head that can screw onto either the Presta
valve or the Schrader valve. Thus minimizing the amount of air that leaks out at the valve.
I've seen ones that screw onto a Schrader on internet. Or. Find a pumphead that was at least
specialized for either one and did not leak any air at the attachmnet point. It seems kinda
uneccesary to have dual function pump heads when they really don't fit very good. At least
mine don't

--
Perre

You have to be smarter than a robot to reply.

--
Perre

You have to be smarter than a robot to reply.

"Per Elmsäter" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

di said:

I agree with you about the UST rims leaking air from the valve stem seal, I know that's where
mine leak. I have one that I've replaced the valve stem twice and it still leaks. I don't think
using a Schrader pump head will help anything. The valve should have a nut on the outside of the
rim to hold it in place.

Of course I have this nut. I just happened to forget about it when describing my setup. Which
pumphead do you use to inflate with?

When I needed to set the bead on one of my X3.1 wheels, I put the Schrader adapter on, so I
could use the compressed air out in the shop. I will go with the Presta setup with a CO2 pump in
the future. The adapter was a PITA to fool with, as I had to get the Presta valve just right for
it to work.

After several months, my wheels are still holding air, but I've not hammered on them yet
either, so......

I use presta for everything.

"Per Elmsäter" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

di said:

I agree with you about the UST rims leaking air from the valve stem seal, I know that's where
mine leak. I have one that I've replaced the valve stem twice and it still leaks. I don't think
using a Schrader pump head will help anything. The valve should have a nut on the outside of the
rim to hold it in place.

Of course I have this nut. I just happened to forget about it when describing my setup. Which
pumphead do you use to inflate with?

Quoted message said:

"Per Elmsäter" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Per Elmsäter wrote:
> On my Mavic UST rims I've noticed that I have an option of using either the Presta valve or a
> Schrader adapter that screws onto the Presta valve. All my pumps can handle both valves and I
> can't make up my mind which one to use. There are supposedly Pros and Cons for both. I use a
> SKS CO2 pump on tour and a SKS floor pump at home. Which valve would you use?

Maybe I wasn't clear enough. The Mavic X3.1 UST ( tubeless ) rim has a hole drilled in it for a
Presta valve. They also furnish a Presta valve that is not attached to a tube. You stick it
throught the double bottomed rim and it comes out just like any other Presta valve on the
outside. But on the inside it does not attach to anything. It is just held in place by the
tight fit and some rubber seals. BTW I would think this is were UST rims leak air and not
between the rim and the tire.

Anyways. This Presta valve also comers with a Schrader adapter that you can screw ontop of the
Presta from the outside. If the Presta valve is opened before you screw it on you can inflate
air through it with any Schrader pump. If the Presta valve is closed you cannot inflate any air
through the Schrader.

My thoughts was that maybe I could find a CO2 pump head that can screw onto either the Presta
valve or the Schrader valve. Thus minimizing the amount of air that leaks out at the valve.
I've seen ones that screw onto a Schrader on internet. Or. Find a pumphead that was at least
specialized for either one and did not leak any air at the attachmnet point. It seems kinda
uneccesary to have dual function pump heads when they really don't fit very good. At least mine
don't

--
Perre

You have to be smarter than a robot to reply.

--
Perre

You have to be smarter than a robot to reply.