Presta Valve Stem: Screw-On Ring Inside As Well As Outside?

On Monday, November 14, 2016 at 8:23:59 AM UTC-8, wrote:
On Saturday, November 12, 2016 at 1:33:07 PM UTC-8, (PeteCresswell) wrote:
I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?
--
Pete Cresswell

I have had the same problem. The only passable fix I've found is a higher quality tube. And this is NOT those super-light tubes.

Though one fix would be to change to a tubeless tire.

Plan B (or C or D) would be to get a threaded pump head and quit yanking. https://www.biketiresdirect.com/prod...0/lhabs3-2.jpg https://www.biketiresdirect.com/prod...schrader-chuck

Frankly, I think the pump has problems if its yanking off stems. I don't use any nuts, screws, sticks, etc., etc., on my valve stems. I throw all that stuff away -- cap, too. I never yank-off my stem (!).

-- Jay Beattie.

On 11/15/2016 8:59 PM, jbeattie wrote:
On Monday, November 14, 2016 at 8:23:59 AM UTC-8, wrote:
On Saturday, November 12, 2016 at 1:33:07 PM UTC-8, (PeteCresswell) wrote:
I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?
--
Pete Cresswell

I have had the same problem. The only passable fix I've found is a higher quality tube. And this is NOT those super-light tubes.

Though one fix would be to change to a tubeless tire.

Plan B (or C or D) would be to get a threaded pump head and quit yanking. https://www.biketiresdirect.com/prod...0/lhabs3-2.jpg https://www.biketiresdirect.com/prod...schrader-chuck

Frankly, I think the pump has problems if its yanking off stems. I don't use any nuts, screws, sticks, etc., etc., on my valve stems. I throw all that stuff away -- cap, too. I never yank-off my stem (!).

One of my pumps' heads seems difficult to remove from a presta valve.
I've taken to putting a bit of saliva on my fingers and moistening the
valve stem before attaching the head. It make removal much easier. YMMV.


--
- Frank Krygowski

On Sunday, November 13, 2016 at 7:09:11 AM UTC-8, Doc O'Leary wrote:
For your reference, records indicate that
"(PeteCresswell)" wrote:

I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?

Consider pushing down on the stem as you detach the pump. Or just not
yanking so hard. Rock the connector back and forth and let the air
pressure do most of the work.

Better yet, release the pressure.
http://tinyurl.com/jobstianpump

On Wednesday, November 16, 2016 at 8:27:24 AM UTC-8, Frank Krygowski wrote:
On 11/15/2016 8:59 PM, jbeattie wrote:
On Monday, November 14, 2016 at 8:23:59 AM UTC-8, wrote:
On Saturday, November 12, 2016 at 1:33:07 PM UTC-8, (PeteCresswell) wrote:
I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?
--
Pete Cresswell

I have had the same problem. The only passable fix I've found is a higher quality tube. And this is NOT those super-light tubes.

Though one fix would be to change to a tubeless tire.

Plan B (or C or D) would be to get a threaded pump head and quit yanking. https://www.biketiresdirect.com/prod...0/lhabs3-2.jpg https://www.biketiresdirect.com/prod...schrader-chuck

Frankly, I think the pump has problems if its yanking off stems. I don't use any nuts, screws, sticks, etc., etc., on my valve stems. I throw all that stuff away -- cap, too. I never yank-off my stem (!).

One of my pumps' heads seems difficult to remove from a presta valve.
I've taken to putting a bit of saliva on my fingers and moistening the
valve stem before attaching the head. It make removal much easier. YMMV.


--
- Frank Krygowski

Are you telling us you have oily spit? Quit drinking the used motor oil.

On Wednesday, November 16, 2016 at 9:36:44 AM UTC-8, Doug Landau wrote:
On Sunday, November 13, 2016 at 7:09:11 AM UTC-8, Doc O'Leary wrote:
For your reference, records indicate that
"(PeteCresswell)" wrote:

I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?

Consider pushing down on the stem as you detach the pump. Or just not
yanking so hard. Rock the connector back and forth and let the air
pressure do most of the work.

Better yet, release the pressure.
http://tinyurl.com/jobstianpump

That pump head does not require a pressure release. It merely needs people that know how to use it.

On Wednesday, November 16, 2016 at 9:49:24 AM UTC-8, wrote:
On Wednesday, November 16, 2016 at 9:36:44 AM UTC-8, Doug Landau wrote:
On Sunday, November 13, 2016 at 7:09:11 AM UTC-8, Doc O'Leary wrote:
For your reference, records indicate that
"(PeteCresswell)" wrote:

I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?

Consider pushing down on the stem as you detach the pump. Or just not
yanking so hard. Rock the connector back and forth and let the air
pressure do most of the work.

Better yet, release the pressure.
http://tinyurl.com/jobstianpump

That pump head does not require a pressure release. It merely needs people that know how to use it.

That's a relief

On Wednesday, November 16, 2016 at 3:10:57 PM UTC-8, Doug Landau wrote:
On Wednesday, November 16, 2016 at 9:49:24 AM UTC-8, wrote:
On Wednesday, November 16, 2016 at 9:36:44 AM UTC-8, Doug Landau wrote:
On Sunday, November 13, 2016 at 7:09:11 AM UTC-8, Doc O'Leary wrote:
For your reference, records indicate that
"(PeteCresswell)" wrote:

I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?

Consider pushing down on the stem as you detach the pump. Or just not
yanking so hard. Rock the connector back and forth and let the air
pressure do most of the work.

Better yet, release the pressure.
http://tinyurl.com/jobstianpump

That pump head does not require a pressure release. It merely needs people that know how to use it.

That's a relief

So much for your Kickstarter. It doesn't look like Jobst ever patented his pressure release valve, either. Except for the fact that spit works and that Silca chucks have fallen out of favor, you could have made a bundle marketing that valve. You could have packaged it along with the special conical washers for pedals and an instruction book on how to countersink your pedal threads. There is money to be made off of this newsgroup!

-- Jay Beattie.

On Wednesday, November 16, 2016 at 5:42:52 PM UTC-8, jbeattie wrote:
On Wednesday, November 16, 2016 at 3:10:57 PM UTC-8, Doug Landau wrote:
On Wednesday, November 16, 2016 at 9:49:24 AM UTC-8, wrote:
On Wednesday, November 16, 2016 at 9:36:44 AM UTC-8, Doug Landau wrote:
On Sunday, November 13, 2016 at 7:09:11 AM UTC-8, Doc O'Leary wrote:
For your reference, records indicate that
"(PeteCresswell)" wrote:

I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Yeah... old tube, probably destined for failure anyhow.. but still...

Has anybody tried putting a little screw-on ring inside the rim to
prevent the stem pulling on the tube?

Consider pushing down on the stem as you detach the pump. Or just not
yanking so hard. Rock the connector back and forth and let the air
pressure do most of the work.

Better yet, release the pressure.
http://tinyurl.com/jobstianpump

That pump head does not require a pressure release. It merely needs people that know how to use it.

That's a relief

So much for your Kickstarter. It doesn't look like Jobst ever patented his pressure release valve, either. Except for the fact that spit works and that Silca chucks have fallen out of favor, you could have made a bundle marketing that valve. You could have packaged it along with the special conical washers for pedals and an instruction book on how to countersink your pedal threads. There is money to be made off of this newsgroup!

-- Jay Beattie.

Hmm. Guess I should go back to my 1st idea and put a hires moving topo map - and data for the whole country - into the display already in new cars. Now that the platform has finally come to me.

https://www.carloop.io/

"(PeteCresswell)" wrote in
:

I've torn a couple of Presta valve stems out of the tube by yanking too
hard when pulling off the pump head.

Nope, haven't seen that. What I do do--mind you, I ride skinny tyres--is
grasp either side of the vavle from around the tyre and rim with the left
hand while releasing the head of my Joe Blow pump with the right. I
sometimes use the tips of the fingers of the left had to push against the
pump head while releasing it.
--
Andrew Chaplin
SIT MIHI GLADIUS SICUT SANCTO MARTINO
(If you're going to e-mail me, you'll have to get "yourfinger." out.)