Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-05-13, 05:19 PM   #1
bagster
Senior Member
Thread Starter
 
Join Date: Aug 2006
Bikes: cannondale f600 mongoose crossway 850
Posts: 77
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Defective tube

Anyone ever buy a defective tube? A few months ago, I bought a 26", Chinese-made, Wallmart special. I had a flat today, and when I removed the tube, I could see little tears all along the top. Since the inside of my tire is smooth, I cannot imagine any problem other than a bad tube. I have never over-inflated the tire, or added any kind of stop leak.
bagster is offline   Reply With Quote
Old 02-05-13, 05:28 PM   #2
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,781
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
well , given its wally world, I doubt they will believe you.
Ill say it too, Might be an installation , User, Error .
did you only use your hands to put the tire back on?
fietsbob is offline   Reply With Quote
Old 02-05-13, 06:31 PM   #3
bagster
Senior Member
Thread Starter
 
Join Date: Aug 2006
Bikes: cannondale f600 mongoose crossway 850
Posts: 77
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by fietsbob View Post
well , given its wally world, I doubt they will believe you.
Ill say it too, Might be an installation , User, Error .
did you only use your hands to put the tire back on?
Nope, not pinched with tire lever. These are a series of tears all along the very top of the tube. The tears are about a 1/2" long and occur about ever 4 or 5 inches for about 1/3 the length of the tube.
bagster is offline   Reply With Quote
Old 02-05-13, 06:39 PM   #4
LarDasse74
Guest
 
Join Date: Jul 2008
Location: Grid Reference, SK
Bikes: I never learned to ride a bike. It is my deepest shame.
Posts: 3,769
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Your description of the tears occuring at regular intervals reminds me of failures I have seen caused by a failed rimstrip... although these obviously happen along the inside.

Also, defective tubes (which I am told do happen but never to me as fare as I can recall) generally do not last months before failing.

Do you have a picture of the holes?

Edit: Also, very odd that there are multiple failure points... one hole is enough to let the air out, and with no air pressure there is nothing pushing the tube against something that could cause a flat.
LarDasse74 is offline   Reply With Quote
Old 02-05-13, 06:54 PM   #5
triumph.1
Senior Member
 
triumph.1's Avatar
 
Join Date: May 2011
Location: N Central Illinois
Bikes: 12 colnago clx3.0, 12 Bianchi Oltre VDCM, 13 Bianchi Cavaria,12 Bianchi infinito, couple vintage Bianchi's and a 1980 alan super record
Posts: 1,275
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Uh, buy a new one and move on
triumph.1 is offline   Reply With Quote
Old 02-05-13, 07:17 PM   #6
Mr. Beanz
Banned.
 
Mr. Beanz's Avatar
 
Join Date: Dec 2005
Location: Upland Ca
Bikes: Lemond Chambery/Cannondale R-900/Trek 8000 MTB/Burley Duet tandem
Posts: 20,030
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by triumph.1 View Post
Uh, buy a new one and move on
Buy a "better" one and move on.
Mr. Beanz is offline   Reply With Quote
Old 02-06-13, 04:03 PM   #7
PatrickGSR94
Senior Member
 
PatrickGSR94's Avatar
 
Join Date: Apr 2012
Location: Memphis TN area
Bikes: 2011 Felt Z85 (road/commuter), 2006 Marin Pine Mountain (utility), 1995 KHS Alite 1000 (gravel grinder)
Posts: 6,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
I purchased my 2011 Felt road bike new, just over 4 months ago in late September 2012. Since then BOTH tubes have just spontaneously sprung leaks and lost all air within seconds. Both times happened while the bike/tires were just sitting stationary, and both of them sprung leaks in exactly the same spot, about 1/2" away from the base of the presta valve. Also heard someone else with a 2011 Felt have the same problem. I think they got a bad batch of tubes. So yes I definitely think a tube can be defective.

But like others said, buy a new tube and move on. I've had great luck with the Bontrager tubes carried by my LBS.
PatrickGSR94 is offline   Reply With Quote
Old 02-07-13, 04:40 PM   #8
bagster
Senior Member
Thread Starter
 
Join Date: Aug 2006
Bikes: cannondale f600 mongoose crossway 850
Posts: 77
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by LarDasse74 View Post
Your description of the tears occuring at regular intervals reminds me of failures I have seen caused by a failed rimstrip... although these obviously happen along the inside.

Also, defective tubes (which I am told do happen but never to me as fare as I can recall) generally do not last months before failing.

Do you have a picture of the holes?

Edit: Also, very odd that there are multiple failure points... one hole is enough to let the air out, and with no air pressure there is nothing pushing the tube against something that could cause a flat.
Problem found. Mr. Tuffy liner had gotten brittle with age and developed cracks that rubbed against my tube and caused the problem.
bagster is offline   Reply With Quote
Old 02-07-13, 04:47 PM   #9
Wil Davis
Curmudgeon
 
Wil Davis's Avatar
 
Join Date: Aug 2005
Location: Nausea, New Hamster
Bikes: (see http://wildavis.smugmug.com/Bikes) Bianchi Veloce (2005), Nishiki Cascade (1992), Schwinn Super Sport (1983)
Posts: 1,572
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yup, I've had a number of "baddies" before; usually they're the cheapies, proving the old adage "you get's what you pays for!". Mine have mostly been a weakness where the valve is bonded into the tube. Some of them have given up soon after getting them up to pressure, a right P.I.T.A. when it happens to both of the spares you're carrying!!!

- Wil
Wil Davis is offline   Reply With Quote
Old 02-07-13, 07:33 PM   #10
LarDasse74
Guest
 
Join Date: Jul 2008
Location: Grid Reference, SK
Bikes: I never learned to ride a bike. It is my deepest shame.
Posts: 3,769
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by bagster View Post
Problem found. Mr. Tuffy liner had gotten brittle with age and developed cracks that rubbed against my tube and caused the problem.
Your flat protective strip was made from cast irony.
LarDasse74 is offline   Reply With Quote
Old 02-07-13, 09:25 PM   #11
Velo Dog
Senior Member
 
Join Date: Jun 2004
Location: Northern Nevada
Bikes:
Posts: 3,802
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Mr. Beanz View Post
Buy a "better" one and move on.
Seriously. It's a tube. I go through half a dozen a year, and I patch them until the patches overlap. Pay six bucks and go ride,
Velo Dog is offline   Reply With Quote
Old 02-07-13, 09:35 PM   #12
koolerb
Senior Member
 
koolerb's Avatar
 
Join Date: Oct 2012
Location: Upstate NY
Bikes: Giant Defy 1, and some others
Posts: 891
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Weird there are multiple failure points, but yes, bad batches hit the shelves every once in a while.
koolerb is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 05:27 PM.