Beach Cruisers Do you love balloon tires and fenders? Do you love riding the simplicity of a single gear and coaster brakes or a single gear cluster? Do you love the classic curves in the tubing of a cruiser that takes you back to the 1950's and 1960's, stylistically? Here's your home! Welcome to the Beach Cruisers and Cruisers forum!

Bad tubes

Old 07-23-21, 05:12 PM
Junior Member
Thread Starter
Join Date: Aug 2019
Posts: 14
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Bad tubes

I just tossed some Teravail tubes (27.5 x 1.5-1.95) in the trash. I installed one in a Panaracer 650b x 42 tire (53 psi) but within hours the tube split on a seam and left me flat. It was not ridden, it just went flat in the garage. Repaired the tube and in a few hours it went flat with the same seam splitting. I tossed that tube and a new in the box Teravail tube, into the trash. These were bought in May 2021.

I don't think I can trust the off brands. These were made in Taiwan which seemed a better bet than the Chinese ones.

Have others experienced this problem with off brand or name brand tubes? I can't remember this happening before no matter where they are manufactured.
Seu is offline  
Old 07-23-21, 05:24 PM
Senior Member
Nessism's Avatar
Join Date: Jun 2004
Location: Torrance, CA
Posts: 3,023

Bikes: Homebuilt steel

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1754 Post(s)
Liked 339 Times in 270 Posts
You posted two threads on this same topic, in different forums.

Last edited by Nessism; 07-23-21 at 07:47 PM.
Nessism is offline  
Old 07-23-21, 06:58 PM
Senior Member
Join Date: Jan 2005
Location: Baltimore, MD
Posts: 3,109
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 1119 Post(s)
Liked 987 Times in 576 Posts
If you're riding 650b wheels, you almost certainly know what you're doing, but any mention of a "split seam" in a recently installed tube supposedly being responsible for failure of the tube raises a warning flag---especially with an oversized tube such as you were using. It's extremely easy to trap part of an oversized tube between the tire bead and the rim, leading to an eventual explosion, immediate or delayed.

After you install your next tube, inflate it to just a few pounds of pressure and then check around both sides of the rim. If and when you find a section where the tube is visible, pinched under the tire bead, work the tube back into the tire such that it is no longer visible. Once you're sure that the tube is entirely within the tire and not pinched under the bead at any point, inflate cautiously, 10 pounds at a time, checking after every round of inflation that the witness line above the tire bead is visible all the way around the wheel, without any high spots or low spots.

tl;dr: chances are that the tubes aren't defective; you might just need to be more careful installing them.
Trakhak is offline  
Likes For Trakhak:
Old 10-28-21, 01:04 AM
Senior Member
loved666's Avatar
Join Date: May 2010
Location: India
Posts: 52

Bikes: Trek 4300

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 0 Times in 0 Posts
bad tubes
loved666 is offline  
Old 10-28-21, 05:13 PM
Senior Member
restlessswind's Avatar
Join Date: Oct 2016
Location: Sacramento, CA
Posts: 457

Bikes: 2017 Surly Cross-Check. 2020 Specialized Turbo Vado 3.0, 2002 GT Dyno Roadster, 2002 Rans Stratus, 2020 Giant Fathom 2, 2011 Trek Pure Sport

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 170 Post(s)
Liked 81 Times in 59 Posts
I've had Specialized brand tubes fail at the seams. I've also had "sharp" rim tape cut the tubes.
restlessswind is offline  
Old 12-31-21, 05:27 AM
Junior Member
Join Date: Dec 2021
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
bad tubes
katerinakater is offline  
Old 12-31-21, 05:42 AM
Jeff Neese
Senior Member
Join Date: Jul 2014
Posts: 597
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 283 Post(s)
Liked 202 Times in 132 Posts
QTubes are junk. High failure rate and they don't hold air very well. I bought 4 of them somewhere and after my experience with the first two, I threw the other two away. Mostly I stick to Continental or Schwalbe tubes now and I can't remember the last time I had a problem with a tube. Not having to inflate my tires each and every time I ride is a big plus for me. You get what you pay for.
Jeff Neese is offline  
Old 12-31-21, 07:47 AM
Moe Zhoost
Half way there
Moe Zhoost's Avatar
Join Date: Sep 2015
Location: North Carolina
Posts: 2,644

Bikes: Many, and the list changes frequently

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 880 Post(s)
Liked 677 Times in 408 Posts
First of all, what you are calling "seams" are actually mold lines from the vulcanization process. In my experience, the most likely cause of your failures is improper installation. If the tire bead is not seated correctly, the tube pressure will eventually force a small section off the rim. The tube then expands out of this bulge until it "splits" with a bang.

After installation, pump it up to 10-15 psi then check to see how it is seating. Most tires have a witness mark around the bead that allows you to gauge even seating. Assuming proper seating, you can then pump it up a bit more and check again. Some tires are just ornery about seating so be gentle with them.

Last edited by Moe Zhoost; 12-31-21 at 07:47 AM. Reason: Add video
Moe Zhoost is offline  
Likes For Moe Zhoost:
Old 01-30-22, 09:41 PM
Senior Member
Join Date: Jun 2013
Location: Yolo County, West Sacramento CA
Posts: 468

Bikes: Modified 26 inch frame Schwinn Varsity with 700c wheels and 10 speed cassette hub. Ryan Vanguard recumbent. 67cm 27"x1 1/4" Schwinn Sports Tourer from the 1980's. 1980's 68cm Nishiki Sebring with 700c aero wheels, 30 speeds, flat bar bicycle.

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 118 Post(s)
Liked 125 Times in 89 Posts
Around 2010 or so I used to buy the cheapest tubes available for my bicycles and had been doing that for decades. No real problems. Then I started to have weird flatting issues where the tubes appeared to just fail after some short length in service. I was buying at Walmart and Target at the time. I stopped buying there and bought much more expensive tubes from a bike store. This cured my problem. I guess the race to cheapest left out the reliablity in those cheap tubes. I now use Schwalbe tubes. I'm getting very good service from my tubes now.
tallbikeman is offline  
Old 01-31-22, 05:35 PM
Senior Member
Join Date: Sep 2012
Posts: 77
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Liked 25 Times in 15 Posts
I believe Bike man for you has sold his house etc and is now an oyster farmer. Too bad. Bike videos are till up though.
birdmove is offline  

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

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.