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 Post subject: Latex tubes, failures.
PostPosted: Sat Aug 29, 2015 9:01 pm 
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Joined: Sat Aug 16, 2014 5:26 pm
Posts: 45
I have been running latex tubes, but I have two tubes fail, one had a cracking affect and lost air, but was sitting in direct sunlight in the 28c heat.

One went bang while descending.

Has the happened because my Campag Bullet wheelset don't use rim tape, they are sealed but are plastic lined.

So I have heard the latex can rub and that is what causes a fail.

Any advice?

Luke

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 Post subject: Latex tubes, failures.
Posted: Sat Aug 29, 2015 9:01 pm 


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PostPosted: Sat Aug 29, 2015 9:14 pm 
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Joined: Tue Jan 28, 2014 6:52 pm
Posts: 82
I didn't have that much bad luck with latex but I still gave up on them. Not much, if any weight savings over an 85g tube and you have to pump them up for every ride. I ride at lunch mostly with my bike stored in my car so pumping up every ride is a just one more thing to do.

Also, I was changing a tire (not a flat) and my latex tube was severely deformed and stretched. It didn't give me a lot of confidence to use it again.


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PostPosted: Sat Aug 29, 2015 9:19 pm 
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Joined: Mon Aug 03, 2015 7:05 pm
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Powder the heck out of the inside of the tire before installing the tube. That's what I do and it seems to have worked well. No latex tube failures yet. *knock on wood*


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PostPosted: Sat Aug 29, 2015 9:21 pm 
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in the industry

Joined: Sat May 12, 2012 7:25 pm
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Location: Glermsford, Suffolk U.K
I have had a few failures but these have been mostly down to the tube being drag round the rim under hard braking. Or that is the only way I can explain. Pumping up tyres before every ride is something I do with butyl tubes. I still use latex. I can't say the problems I have had have been off putting as I find I puncture less with latex.

I have tried talc before the last failure it did not help. Had to jam the brakes on in a race to avoid a crash which I did but the hiss happened and my shoe fell apart. Race over.

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PostPosted: Sat Aug 29, 2015 9:23 pm 
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Joined: Sat Aug 16, 2014 5:26 pm
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I will change to Supersonic butyl tubes, 50g so same weight as a latex tube, more reliable but not bullet proof. I am more thinking on the lines of rolling resistance, and the saving, but can't be having tubes go for no reason and rapid deflating.

Thanks

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PostPosted: Sat Aug 29, 2015 9:25 pm 
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Thanks guys.

I am thinking the tubes are rubbing and finding sharper parts on the plastic rim inside, like I said. I rim tape. No heavy braking done either.

Luke

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PostPosted: Sat Aug 29, 2015 9:50 pm 
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Joined: Tue Aug 02, 2011 5:54 pm
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The last two latex failures I had were this season, from gashes in the tire and the tube popping. Both tires unusable, latex tubes patched and running fine.

Before that I effectively went two seasons without a flat on latex tubes.


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PostPosted: Sat Aug 29, 2015 9:52 pm 
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Location: Transilvania
PLuKE wrote:
.
.

One went bang while descending.

.
.
Luke


Dear, I'd be keen to learn how you managed to recover the ride from this while descending?
Usually latex tubes deflate rapidly when they fail with a *bang*

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PostPosted: Sat Aug 29, 2015 9:58 pm 
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Joined: Tue Apr 15, 2014 9:49 pm
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I use the Supersonic's -50grms with Veloflex master tyres, very good. Roll very well. No issues whatsoever


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PostPosted: Sun Aug 30, 2015 2:59 am 
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bm0p700f wrote:
I have had a few failures but these have been mostly down to the tube being drag round the rim under hard braking. Or that is the only way I can explain. Pumping up tyres before every ride is something I do with butyl tubes. I still use latex. I can't say the problems I have had have been off putting as I find I puncture less with latex.

I have tried talc before the last failure it did not help. Had to jam the brakes on in a race to avoid a crash which I did but the hiss happened and my shoe fell apart. Race over.

What pressure are you running that tires are rotating on the rim under hard braking?


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PostPosted: Sun Aug 30, 2015 8:50 am 
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Joined: Sat Aug 16, 2014 5:26 pm
Posts: 45
Horze wrote:
PLuKE wrote:
.
.

One went bang while descending.

.
.
Luke


Dear, I'd be keen to learn how you managed to recover the ride from this while descending?
Usually latex tubes deflate rapidly when they fail with a *bang*


I was going under some trees, and didn't have a clue what it was, then a nice wobble from the rear, and slowed down, could of turned out nasty, if it was that front wheel then surely a crash!

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PostPosted: Sun Aug 30, 2015 9:00 am 
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Joined: Fri May 25, 2007 6:43 pm
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WannabeWeenie wrote:
bm0p700f wrote:
I have had a few failures but these have been mostly down to the tube being drag round the rim under hard braking. Or that is the only way I can explain. Pumping up tyres before every ride is something I do with butyl tubes. I still use latex. I can't say the problems I have had have been off putting as I find I puncture less with latex.

I have tried talc before the last failure it did not help. Had to jam the brakes on in a race to avoid a crash which I did but the hiss happened and my shoe fell apart. Race over.

What pressure are you running that tires are rotating on the rim under hard braking?
http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=132987&start=30

Don't worry, according to spookyload it's against the laws of physics. :roll:


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PostPosted: Sun Aug 30, 2015 12:17 pm 
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Joined: Sat Jun 19, 2004 11:08 am
Posts: 6512
Location: Urbana, Illinois
I've been using them for years. Much better than light butyl tubes for reliability and the ride out weighs having to pump them up daily. No surprises with them. I used to use the Michelin green and switched to the Vittoria's this year and they have been great too. My pinch flats have been reduced to almost zero since I started using them. Correct installation is a must.

The best thing about pumping them up daily is you closely inspect your tires daily. :thumbup:

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PostPosted: Sun Aug 30, 2015 1:00 pm 
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Joined: Sat Apr 22, 2006 12:38 am
Posts: 1839
Location: Dutchess County, NY
I've been using latex tubes for 2 seasons now and I'm very happy with them. Never pinched one installing them and the only flats I've had were debris going through the tire (glass, staple, etc). In those cases I was able to patch and re-use the tubes.

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Posted: Sun Aug 30, 2015 1:00 pm 


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PostPosted: Sun Aug 30, 2015 3:25 pm 
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Joined: Sun Jan 03, 2010 4:58 am
Posts: 611
My only issue with latex tube failures is buying a few and when I needed to use them, they were worn out. As in worthless. I guess I should have put them in the refrigerator or something.


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