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




Post new topic Reply to topic  [ 5 posts ] 
Author Message
PostPosted: Tue Sep 16, 2014 8:50 am 
Offline

Joined: Fri Jan 31, 2014 4:54 pm
Posts: 203
Hello everyone

Just after I ruined a latex tube while pumping, I looked closer to check the failure area.
Both sides of the valve on my both tubes were starting to have some defect. One just failed.
I am using Michelin 22/23mm latex tubes with 25mm Pro4 Service Course tires. 17C rims and 28mm measured tires. So tubes are stretching much inside.

Anyways, I threw away the punctured tube, and patched my new tube and the existing ones near the stem. Where they usually have problem. So they can't stick to rim tape, and this will fix the issue i believed.
I used Park Tool's pre-glued patch. Really thin, stretching well, light and sticking good.

So far, no problems, as you guess.
But I realised something new. Now, my tubes does not lose pressure that fast.

I had a ride on Sunday morning, and my tires were 80psi front and 90psi rear before ride. This morning (Tuesday), front is 60 and rear is 70psi.
Before patching, I was usually finding them around 40psi after 2 days.
Exact same setup, but patched tubes...

It seems that, at least for me, the main reason of the air leaking was from the valve stem, where 2 materials are joining. After I patched there, it is now really slow.

I wonder if anyone else here had similar experience?

_________________
Stava
Instagram


Top
 Profile  
 
Posted: Tue Sep 16, 2014 8:50 am 


Top
  
 
PostPosted: Tue Sep 16, 2014 9:49 am 
Offline
Administrator
User avatar

Joined: Sat Jun 19, 2004 11:08 am
Posts: 6226
Location: Urbana, Illinois
I use the same tubes in 23mm wide carbon clinchers. Running Continental 4000s 23mm wide tires. I tend to loose about 20 to 30 psi per day as an average. The site you mention with these tubes tend to be the area of highest failure. I've been using them for about 5 years and the difference it makes in the ride makes it worth it.

_________________
-For my next trick I will set myself on fire!
-This board and the world in general would be a much nicer place if everyone could just take themselves a little less seriously.
-Sticky Fingers John Rockefeller
-First one over the cliff wins!


Top
 Profile  
 
PostPosted: Tue Sep 16, 2014 12:04 pm 
Offline

Joined: Fri Jan 31, 2014 4:54 pm
Posts: 203
Juanmoretime wrote:
I use the same tubes in 23mm wide carbon clinchers. Running Continental 4000s 23mm wide tires. I tend to loose about 20 to 30 psi per day as an average. The site you mention with these tubes tend to be the area of highest failure. I've been using them for about 5 years and the difference it makes in the ride makes it worth it.


It was my exact experience. But it is much more slower now, and only change was patching that areas.

By the way, is it safe to ride latex in carbon clinchers? I am about to buy 27mm wide chinese clinchers and wonder if you had any problems so far?

_________________
Stava
Instagram


Top
 Profile  
 
PostPosted: Tue Sep 16, 2014 4:00 pm 
Offline
in the industry
User avatar

Joined: Sun Jul 29, 2012 2:59 pm
Posts: 634
Location: Ruidoso, NM
Juanmoretime wrote:
The site you mention with these tubes tend to be the area of highest failure.


Assuming you have the tube slightly inflated and installed properly, press or pull the stem against the rim tape before you inflate. If the stem gets stuck above the tape then you can get a lot of stretching before the air pressure is high enough to push it down.

_________________
formerly rruff...


Top
 Profile  
 
PostPosted: Wed Sep 17, 2014 10:09 am 
Offline
Administrator
User avatar

Joined: Sat Jun 19, 2004 11:08 am
Posts: 6226
Location: Urbana, Illinois
Since I have been riding latex tubes in carbon clinchers for about 5 years with zero issues other than the occasional flat I would have to say that it is safe.

_________________
-For my next trick I will set myself on fire!
-This board and the world in general would be a much nicer place if everyone could just take themselves a little less seriously.
-Sticky Fingers John Rockefeller
-First one over the cliff wins!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 


Who is online

Users browsing this forum: stuka666 and 3 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. Latex Tubes vs Ultra Light Butyl Tubes?

[ Go to page: 1, 2, 3, 4, 5 ]

in Everything wheels

ToffieBoi

70

3315

Mon Sep 08, 2014 11:36 am

ToffieBoi View the latest post

There are no new unread posts for this topic. Tire sealant in latex tubes

[ Go to page: 1, 2, 3 ]

in Everything wheels

AGW

30

764

Fri Sep 05, 2014 10:58 am

ToffieBoi View the latest post

There are no new unread posts for this topic. Poor steerer cut - fixing

[ Go to page: 1, 2 ]

in Road

Devon

28

1741

Thu Dec 12, 2013 11:27 pm

neeb View the latest post

There are no new unread posts for this topic. Campy ergopower fixing clamp bolt

in Road

russianbear

3

215

Wed Aug 06, 2014 1:50 am

NiFTY View the latest post

There are no new unread posts for this topic. PLanet X - RT-57 Weight loss? ON A BUDGET - HELP

[ Go to page: 1, 2 ]

in Introduce Yourself / Gallery - Please use metric weights.

pekruhnium

18

1487

Sun Sep 07, 2014 7:09 pm

pekruhnium View the latest post


It is currently Mon Sep 22, 2014 11:44 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