Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Flats that repair themselves?

Search
Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Flats that repair themselves?

Thread Tools
 
Search this Thread
 
Old 08-09-20, 12:55 PM
  #1  
tom.a.geraci@gm
Newbie
Thread Starter
 
Join Date: Jul 2020
Location: Northern California
Posts: 3

Bikes: Americano & Cross-bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Flats that repair themselves?

So I have not seen this thread...I have had a flat front and a flat rear tire at the end of long rides recently. After I pumped them up, they have both held air! There is not fix-a-flat or anything like that in my tires, just thicker and usual tubes and a flat plastic band in the tire. After 56 years of riding bikes, have 6 children and repairing numerous flats, I can't explain how both tires managed to "fix themselves.?" Can anyone explain this to me? Now I have everytyhing I need to fix my flats as I expect my luck to run-out!
tom.a.geraci@gm is offline  
Old 08-09-20, 01:09 PM
  #2  
Gonzobuster
Junior Member
 
Gonzobuster's Avatar
 
Join Date: Aug 2020
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Liked 5 Times in 5 Posts
Is it possible that someone had tempered with the valves?
Gonzobuster is offline  
Old 08-09-20, 01:13 PM
  #3  
tom.a.geraci@gm
Newbie
Thread Starter
 
Join Date: Jul 2020
Location: Northern California
Posts: 3

Bikes: Americano & Cross-bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Flats that repair themselves

In both cases the tires lost air while I was riding the bike, both tires were properly inflated when I started my bike ride. I was very surprised when I pumped them-up and they both held air! So no there is no one else that even lives with me, or touches my bike.
tom.a.geraci@gm is offline  
Old 08-09-20, 01:16 PM
  #4  
Gonzobuster
Junior Member
 
Gonzobuster's Avatar
 
Join Date: Aug 2020
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Liked 5 Times in 5 Posts
Then I can’t imagine how they fixed themselves.
Gonzobuster is offline  
Old 08-09-20, 01:40 PM
  #5  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,598

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,355 Times in 862 Posts
Presta valves? did not screw the little nut on the top, down & so the valve leaked?
tightening that secures the check valve, differential air pressure is all they use, otherwise.
Its Schrader . Auto Valve cores, that have a spring keeping the check valve shut..
fietsbob is offline  
Old 08-09-20, 01:59 PM
  #6  
downtube42
Senior Member
 
downtube42's Avatar
 
Join Date: Oct 2008
Location: Portland, OR
Posts: 3,843

Bikes: Trek Domane SL6 Gen 3, Soma Fog Cutter, Focus Mares AL, Detroit Bikes Sparrow FG, Volae Team, Nimbus MUni

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 896 Post(s)
Liked 2,063 Times in 1,081 Posts
Valve possibly was not fully seated. Could have been debris or bent or gummed up. Can happen to either type of valve.
downtube42 is offline  
Old 08-09-20, 05:17 PM
  #7  
tom.a.geraci@gm
Newbie
Thread Starter
 
Join Date: Jul 2020
Location: Northern California
Posts: 3

Bikes: Americano & Cross-bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Flats repairing themselves

It must be the valve stem since the tires were not damaged. Thank you for your help, I would not have ever figured this out on my own.
tom.a.geraci@gm 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



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.