HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Articles FAQ Contact About




Post new topic Reply to topic  [ 16 posts ] 
Go to page 1, 2  Next
Author Message
PostPosted: Mon Aug 01, 2011 7:20 pm 
Offline

Joined: Tue May 15, 2007 5:54 pm
Posts: 34
I got a flat tire the other day when a staple punctured my Vittora Corsa CX tubular. After changing tires and returning home, it occurred to me that Stan's would be a easy way to repair this tire, as the hole would essentially be the size of a pin-hole. However with the new Vittoria Corsa CX tubulars, the red valves unscrew close to the basetape, and does not have a removable core. I ended up unscrewing the red valve, and painfully dripped Stan's into the valve nub, making quite the mess, although it still worked with the tire off.

What would one do on the road when the valve core is not removable, and removing the entire red valve with the tubular still attached to the rim would leave the valve nub buried inside the rim?

I did a quick search and could not find any similar enquiries, and would appreciate any insight. And please, do not make this into a tubular vs clincher arguement. I'm an old dinosaur and still ride tubulars everyday like the old days!

Thanks in advance.


Top
 Profile  
 
PostPosted: Mon Aug 01, 2011 7:39 pm 
Offline

Joined: Sun Nov 14, 2010 10:25 pm
Posts: 476
seriously, how can a tub as high end as the evo cv not have a removable core.

Was doubting about which tubs to get. gonna go continental now for sure. Thx :thumbup:

_________________
  • 2011 Cannondale Flash F1
  • 2010 Cannondale Caad9
  • 2000 Caad 4 aero



Top
 Profile  
 
Posted: Mon Aug 01, 2011 7:39 pm 


Top
  
 
PostPosted: Mon Aug 01, 2011 11:06 pm 
Offline

Joined: Fri Apr 08, 2011 7:53 pm
Posts: 8
If you are talking about the Vittoriata Corasa EVO CXs, just unscrew the red valve stem and use the Stans injector. I don't use the hose at at all.


Top
 Profile  
 
PostPosted: Mon Aug 01, 2011 11:17 pm 
Offline
User avatar

Joined: Sun May 31, 2009 8:47 pm
Posts: 882
Location: durp durp durp
Its a hard one to pull off. I never managed to get sealent into the vitt cx valves. Best possible answer I had was to use pit stop which forces itself in under pressure.

Happy to never use CX tires again they cut & pick up slits way too easily, in at least 10nr tires I never managed to use the thread before it got cut too much to be able to use it.


Top
 Profile  
 
 Post subject: Re:
PostPosted: Mon Aug 01, 2011 11:28 pm 
Offline
Tubbie Guru

Joined: Tue May 03, 2005 2:20 am
Posts: 5796
Location: Belgium
Hi,

laager wrote:
Master-Ti wrote:
What would one do on the road when the valve core is not removable, and removing the entire red valve with the tubular still attached to the rim would leave the valve nub buried inside the rim?

You could get a piece of small diameter flexible hose and a screw on presta adaptor such as the tube supplied with the CaffeLatex injector:

Image

Just stick the nozzle of the bottle of Stan's into the bare tube at the other end. If the tube is short enough you wouldn't waste much Stan's.


It seems to me that Vittoria goes to some great lenghts to make their tubulars unrepairable. Virtually impossible to repair the "old" way (needle and thread) and only easy to repair with their own stuff. Which does not work too well if at all...

Thank god there are better tubs around....(But no Conti Comps for me, thanks but no thanks) :mrgreen:

Ciao, ;)

_________________
Being a snob is an expensive hobby.


Top
 Profile  
 
PostPosted: Tue Aug 02, 2011 1:40 am 
Offline
User avatar

Joined: Fri Sep 10, 2010 8:02 pm
Posts: 162
I also had this happen on the road. I had to rip off the vittoria after there pit stop failed to fix the hole. I took off the valve and squirted tufo tire sealant in and added 50 psi and found the hole and heald it with my thumb and it sealed up.

got home and the tire being a worthless vittoria had deflated all night and glued it self together. NEVER will I use a vittoria again as a main tire. I now use the old one as a spare and went back to conti.

_________________
Wilier Zero.7 SR11 being built
2011 C59 Di2 AX SRT 24's, THM Calvica, Fibula
2010 RXR VIP @ Red RXR Sold
MY RXR VIP-> viewtopic.php?f=10&t=77056" onclick="window.open(this.href);return false;


Top
 Profile  
 
PostPosted: Tue Aug 02, 2011 8:35 am 
Offline

Joined: Fri Jul 16, 2010 9:59 am
Posts: 8
What you need is a continental valve extender,with the tub still on the wheel you take off the red valve and insert the extender in upside down,then using the small bottle of stans that you can buy in any cycle shop cut the top to fit over the other end of the extender and gently squeeze.Remove extender refit red valve and voila.Itworks for me. :)


Top
 Profile  
 
PostPosted: Tue Aug 02, 2011 9:33 am 
Offline

Joined: Sun Sep 28, 2008 2:23 am
Posts: 655
Location: so. cal.
This is what I did
1St take off the valve
2nd unglue a the small section where the valve goes
3Rd now that there no valve just pour stans .
4Th this is where it gets tricky push the valve thru the rim hole once it is on the other side if the rim try setting the tubular back, against the valve and then just thread it in. when you get home just add a tad of glue to the valve area. Hopefully this was helpful as english is my second language.

Sent from my PC36100 using Tapatalk


Top
 Profile  
 
PostPosted: Thu Mar 21, 2013 10:47 pm 
Offline

Joined: Sun May 16, 2010 7:28 pm
Posts: 652
Just got a new pair of vittoria corsa evo CX's, and the appropriate red 110mm extenders. Since vittoria pit stop seems to be worthless and stan's seems to be the top sealant, I'd like to be able to add it after a flat without taking off the tire. In this thread:
viewtopic.php?f=3&t=51232&hilit=vittoria+sealant&start=60#p804946
the guy describes carrying around an extra red vittoria valve extender that he had ripped the valve core out of for the sole purpose of adding sealant. In the case of a flat, he'd unscrew the extender with a valve core, and screw on the empty one and add sealant through it, then put the proper extender back on and inflate. I like this idea (if vittoria had just made the damn valve cores on their $25 extenders removable this wouldn't be a problem), but I really don't want to drop $25 for another set of 110mm valve extenders just to destroy one for sealant purposes. Are there any other alternatives? I know maxxis makes some supposedly compatible extenders, which DO have removable cores, but they don't seem to have a 110mm version and almost nobody carries them.
As an aside, since stan's seems to dry up after awhile, leaving behind a latex ball inside of your tubulars, can one add enough stan's to seal up a hole, and then drain out the excess out of the tire before it dries out?


Top
 Profile  
 
PostPosted: Fri Mar 22, 2013 12:24 am 
Offline
Tubbie Guru

Joined: Tue May 03, 2005 2:20 am
Posts: 5796
Location: Belgium
Hi,

Quote:
As an aside, since stan's seems to dry up after awhile, leaving behind a latex ball inside of your tubulars, can one add enough stan's to seal up a hole, and then drain out the excess out of the tire before it dries out?


That seem very doubtful. IMO the trick is to learn to know just how much sealant it takes to cure a certain type of puncture and use a sealant that's as effective as possible.
No idea about Stans but I often need little more than 15ml of Tufo Extreme to seal a hole.

I do have a couple of tubs in the cellar though that do need their inner tube replaced because of too much sealant. One will even take pushing an iron rod through the tub as the sealant has acted as a glue between the inner tube and the casing.

Bottom line is, use sealant, the right sealant, and use it sparingly and wisely. It's sometimes more trouble than it's worth....

Be ware of some companies taking measures to built in extra obsolescence in what is by its very nature an obsolent product anyhow.

Ciao, ;)

_________________
Being a snob is an expensive hobby.


Top
 Profile  
 
PostPosted: Fri Mar 22, 2013 12:59 am 
Offline
Shop Owner

Joined: Sat Jun 13, 2009 4:02 am
Posts: 1976
Location: NoVA/DC
Kulivontot,
you can use the maxxis extender in any length you want, coupled with a Tufo-style one in series.


Top
 Profile  
 
PostPosted: Fri Mar 22, 2013 4:52 am 
Offline

Joined: Sun May 16, 2010 7:28 pm
Posts: 652
Looks like Maxxis has a 100mm version... Anyone know where I can get them in the US? Wiggle's got em' but shipping almost doubles the cost.


Top
 Profile  
 
PostPosted: Sat Mar 23, 2013 1:12 am 
Offline

Joined: Sat Jan 23, 2010 1:24 am
Posts: 98
Location: Evansville, IN, USA
+1 on the Maxxis MVS extender. That's what I used on my Vittoria tubies. Makes it a no brainer.

Agree it is ridiculous to not have a removable valve core.

_________________
2013 BMC TMR01 custom build
2013 Cannondale F-Series 29'er, Carbon 3
2012 Cannondale CAAD10-1 custom build, 14.06 lbs
2011 Specialized Crux, Alloy
2009 Specialized Roubaix Pro SL SRAM Red
1980 Palo Alto custom build


Top
 Profile  
 
PostPosted: Tue Mar 26, 2013 12:04 am 
Offline

Joined: Sun Sep 27, 2009 9:54 am
Posts: 359
Location: Australia
I've just purchased a set of Maxxis MVS valve extenders.
Do you guys use plumbers tape when you put it on?

I'll be retro fitting one onto my already mounted tub so i hope that'll be fine to do without using plumbers tape.

_________________
2012 Scott Foil Premium


Top
 Profile  
 
Posted: Tue Mar 26, 2013 12:04 am 


Top
  
 
PostPosted: Tue Mar 26, 2013 12:38 am 
Offline
Tubbie Guru

Joined: Tue May 03, 2005 2:20 am
Posts: 5796
Location: Belgium
Hi,

Not familiar with these extenders so take my words with a grain of salt.
For the past ten years I've never used plumbers tapes between the valve stem and its extender.
Tufo style alumininium extenders are what I use.
They're screwed on by hand then just tightened gently by small tweezers.
Even though this is mostly done on tubulars using latex inner tubes (porous) I can't say I ever witnessed any leaks at the junction between the stem and the extender.

From my past experience there really is no longer any need for plumbers tape as tolerances are much tighter nowadays.

One question about Stan's sealant though. Was this ever designed with high pressure use in mind? After all this is one of these MTB, hence low pressure products, right?

Ciao, ;)

_________________
Being a snob is an expensive hobby.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 16 posts ] 
Go to page 1, 2  Next


Who is online

Users browsing this forum: arneg, Bing [Bot], campbellrae, Google Adsense [Bot], hjb1000, Lassekr, zander and 40 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Vittoria Corsa SR

in Road

philhul

5

757

Wed May 28, 2014 6:49 pm

philhul View the latest post

There are no new unread posts for this topic. Vittoria Valve Stems?

in Road

addicted

0

391

Mon Apr 21, 2014 11:23 am

addicted View the latest post

There are no new unread posts for this topic. Alternative to Vittoria Corsa Evo CX Tubs

in Road

jrobart

1

525

Sun May 25, 2014 10:03 pm

mjduct View the latest post

There are no new unread posts for this topic. Vittoria Open Corsa Evo CX III seating issues

in Road

Horacio

10

1215

Sun Apr 27, 2014 4:24 am

kbbpll View the latest post


It is currently Mon Dec 29, 2014 10:03 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB