Vittoria Pitstop with Zipp extenders

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12x23
Posts: 220
Joined: Sun Jul 30, 2006 3:05 am
Location: Georgia

by 12x23

Will Vittoria Pitsop "release" through a Zipp valve extender and through the presta valve on the stem its attached to? I've been riding this configuration for some time with a bottle of Pitstop in my jersey pocket, luckily no need to use it, but today began to wonder if the sealant will release through the "open" extender.

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

it's designed to flow through a standard presta valve assembly, so having a bit of a metal tube before it poses no problem.
personally, i have about a 30% success rate w pitstop anyways. but most flats here are from glass.

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CharlesM
Posts: 5771
Joined: Tue Sep 26, 2006 12:37 am
Location: Phoenix Arizona

by CharlesM

Pittstop works every time for me, but I also only ever use the full core extenders that move the valve to the top. I unscrew the valve and dump the full content of the pittstop inside, replace the valve, swish it around and inflate.

Steve_W
Posts: 296
Joined: Sun Oct 19, 2008 12:40 pm
Location: England

by Steve_W

It does work.....

Twinning
Posts: 87
Joined: Wed Jun 06, 2012 6:18 pm

by Twinning

thisisatest wrote:it's designed to flow through a standard presta valve assembly, so having a bit of a metal tube before it poses no problem.
personally, i have about a 30% success rate w pitstop anyways. but most flats here are from glass.

30% success rate?!? Knowing that I would have just saved my money to go towards a new tubular tire rather than buy this 18 dollar tube of no help.

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

i carried another tubular when i used them. not against them, it's just how it is right now.
a couple coworkers with tubulars dont carry pitstop, they carry a 2oz Stans bottle and a co2. for the tubulars that pitstop wont fix, Stans seals it fully about 75% of the time. other times it wont hold at pressure or eventually pushes out.

12x23
Posts: 220
Joined: Sun Jul 30, 2006 3:05 am
Location: Georgia

by 12x23

thisisatest wrote:i carried another tubular when i used them. not against them, it's just how it is right now.
a couple coworkers with tubulars dont carry pitstop, they carry a 2oz Stans bottle and a co2. for the tubulars that pitstop wont fix, Stans seals it fully about 75% of the time. other times it wont hold at pressure or eventually pushes out.


Did they pour the Stan's down the Zipp extender and use the CO2 or fill the tubie with Stan's before installed?

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Getter
Posts: 877
Joined: Sat Nov 14, 2009 6:30 am
Location: So Cal

by Getter

You've got to remove the valve core to get the Stan's into the tube. I put the Stan's in before I glue the tire on. I got a puncture a few months back. It was enough for the Stan's to start spraying out...sealed itself...hasn't leaked air since.

12x23
Posts: 220
Joined: Sun Jul 30, 2006 3:05 am
Location: Georgia

by 12x23

Getter wrote:You've got to remove the valve core to get the Stan's into the tube. I put the Stan's in before I glue the tire on. I got a puncture a few months back. It was enough for the Stan's to start spraying out...sealed itself...hasn't leaked air since.


Had a friend suggest this method. Had a shop advise otherwise. When I replace this pair I think I'll go with Stan's.

Thanks,

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

ditto what Getter said.
some people hesitate to use a latex sealant in latex tubes, ive yet to see a problem.

fdegrove
Tubbie Guru
Posts: 5851
Joined: Tue May 03, 2005 2:20 am
Location: Belgium

by fdegrove

Hi,

Twinning wrote:
thisisatest wrote:it's designed to flow through a standard presta valve assembly, so having a bit of a metal tube before it poses no problem.
personally, i have about a 30% success rate w pitstop anyways. but most flats here are from glass.

30% success rate?!? Knowing that I would have just saved my money to go towards a new tubular tire rather than buy this 18 dollar tube of no help.


My success rate with Pittstop is close to 0%. Even when it does seem to work at first it does not in the long run which makes it even worse...
From comparative testresults it is also shown not to work too well either. There are other and cheaper products out there that do a better job.

Either way depending on such a product to carry you back home is nothing more than wishful thinking.

Ciao, ;)
Being a snob is an expensive hobby.

MDiddy
Posts: 26
Joined: Fri Feb 24, 2012 4:46 am
Location: Corona, California

by MDiddy

I found the pitstop to work about 25% of the time. Certainly not more than that. I used Stans and Tufo also. Those work better, but not on the road. I'll put that in when I get home, pull the core, pour about half the bottle in, replace the core and rotate the tire so that the hole is at 6 o'clock. Let it sit for a day and reinflate. That works better than pitstop, but it won't get you home. Eventually, I decided it was just easier to zip tie an extra tire to my saddle and always have it with me. No more pitstop and no more Stans. No more problems with getting stranded too.

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