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


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-14-09, 08:28 PM   #1
WoundedKnee
Antarctica awaits
Thread Starter
 
WoundedKnee's Avatar
 
Join Date: Jun 2009
Location: Tucson, Zona
Bikes:
Posts: 1,965
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rim problems?

I need help, every time I replace my tubes, I pump them up and they are flat again within half an hour. The place where the hole is looks slightly pinched/skinnier than the rest of the tube. There isn't anything that I can see that would cause this on the rim.
WoundedKnee is offline   Reply With Quote
Old 12-14-09, 08:30 PM   #2
10 Wheels
Galveston County Texas
 
10 Wheels's Avatar
 
Join Date: Nov 2007
Location: In The Wind
Bikes: 2010 Expedition, 03 GTO
Posts: 29,894
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 303 Post(s)
Picture might help?
__________________
[SIZE=1][B]What I like about Texas[/B]
http://www.youtube.com/watch?v=PGukLuXzH1E

Set F1re To The Ra1n ( NY Night Rain Ride)
http://www.youtube.com/watch?v=W7jfcWEkSrI
10 Wheels is offline   Reply With Quote
Old 12-14-09, 08:42 PM   #3
isaacz
Gold Member
 
isaacz's Avatar
 
Join Date: Nov 2007
Location: maryland
Bikes:
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Make sure that the rim strip is good, and that none of the nipples are chafing the tube. Then maybe check for burs around the rim and file them smooth.
isaacz is offline   Reply With Quote
Old 12-14-09, 09:57 PM   #4
WoundedKnee
Antarctica awaits
Thread Starter
 
WoundedKnee's Avatar
 
Join Date: Jun 2009
Location: Tucson, Zona
Bikes:
Posts: 1,965
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Now my Planet Bike airpump only blows air out of the schrader hole... wtf!
WoundedKnee is offline   Reply With Quote
Old 12-14-09, 10:18 PM   #5
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,632
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)

..
__________________
Scrodzilla is offline   Reply With Quote
Old 12-14-09, 10:21 PM   #6
WoundedKnee
Antarctica awaits
Thread Starter
 
WoundedKnee's Avatar
 
Join Date: Jun 2009
Location: Tucson, Zona
Bikes:
Posts: 1,965
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Haha..

here is a picture. It's big as hell just so you know.

http://i48.tinypic.com/r2j05d.jpg
WoundedKnee is offline   Reply With Quote
Old 12-14-09, 10:28 PM   #7
spcialzdspksman
Hella Raw
 
spcialzdspksman's Avatar
 
Join Date: Jul 2009
Location: San Francisco, CA
Bikes:
Posts: 820
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
eeGet a new tube. I had the same problem once. There was a leak, so I patched it, but overnight, all the air leaked out. There's probably a crazy small leak somewhere, but I don't think it'll worth the trouble to find it and patch it again.
Also if you're using tire levers to mount them, be really careful not to push in too hard or it will puncture the tube.
You can either pump a little air into the tube (to give it shape) before mounting, or just use your hands to mount them (says LBS guy, although it's a pain to the fingers and stomach).

edit: one more thing, make sure the tube is properly seated along the entire rim, (meaning none of it is pinched between the tire and rim) before pumping air into the tube. To do this, work around the rim and wiggle the tire in a forward- backward motion perpendicular to the rim.
Hope this helps!

Last edited by spcialzdspksman; 12-14-09 at 10:31 PM.
spcialzdspksman is offline   Reply With Quote
Old 12-14-09, 10:39 PM   #8
WoundedKnee
Antarctica awaits
Thread Starter
 
WoundedKnee's Avatar
 
Join Date: Jun 2009
Location: Tucson, Zona
Bikes:
Posts: 1,965
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thank you. I suspect it to be the rim because this has happened to multiple tubes. I'll try patching it one more time.
WoundedKnee is offline   Reply With Quote
Old 12-15-09, 02:07 AM   #9
LupinIII
Senior Member
 
Join Date: May 2008
Location: Davis/Lafayette, CA
Bikes: too many
Posts: 2,014
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
use that pvc rim tape, i used to use velox, but it's too narrow to cover the nipple holes all the way sometimes.
LupinIII is offline   Reply With Quote
Old 12-15-09, 06:38 AM   #10
filtersweep
Senior Member
 
filtersweep's Avatar
 
Join Date: Mar 2004
Bikes:
Posts: 2,615
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What trouble? Just dip the inflated tube in the sink and look for bubbles, then patch. It is the easiest way to find elusive leaks.

Sounds like the OP doesn't really know how to mount a tire/tube....

Quote:
Originally Posted by spcialzdspksman View Post
eeGet a new tube. I had the same problem once. There was a leak, so I patched it, but overnight, all the air leaked out. There's probably a crazy small leak somewhere, but I don't think it'll worth the trouble to find it and patch it again.
Also if you're using tire levers to mount them, be really careful not to push in too hard or it will puncture the tube.
You can either pump a little air into the tube (to give it shape) before mounting, or just use your hands to mount them (says LBS guy, although it's a pain to the fingers and stomach).

edit: one more thing, make sure the tube is properly seated along the entire rim, (meaning none of it is pinched between the tire and rim) before pumping air into the tube. To do this, work around the rim and wiggle the tire in a forward- backward motion perpendicular to the rim.
Hope this helps!
filtersweep 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 05:55 AM.