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


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-09-12, 08:30 PM   #1
MyBikeGotStolen
Senior Member
Thread Starter
 
Join Date: Dec 2006
Location: Jacksonville Florida
Bikes: Raleigh Glacier MTB/Commuter. Cannondale CAAD5, Windsor Timeline fixed gear
Posts: 765
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Proper way to store bike tires...and did I kill these?

Today I put on a set of Contis that I had taken off another one of my bikes last summer and they both had bad "humps" (or maybe flat spots) in them. I knew they where fine when I took them off the other bike last year, so I am wondering what happened to them in between.

They were stored in the garage standing up, leaned against a wall. They are wire beaded. Looking back on it now, I see how this could alter the shape of the tire, but I figured the pressure would straighten them back out after remounting them. It did seem like they got a lot better after 25 (bumpy) miles on the bike. Will they continue to even out, or should I toss them and get another pair?

Also, I do have a pair of folding bead tires. How should these be stored? The wire bead tires are within 1000 miles or so of death anyways, but the folding beads only have about 100 miles on them, so I would hate to screw up that pair too.
MyBikeGotStolen is offline   Reply With Quote
Old 07-09-12, 08:43 PM   #2
Mr. Fly
Senior Member
 
Mr. Fly's Avatar
 
Join Date: Jan 2007
Location: Silicon Valley, CA.
Bikes:
Posts: 662
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A lot of times, apparent flat spots are just installation issues when the bead isn't fully seated on the rim. You can check for this by inspecting the tire/rim junction while slowly turning the wheel. If it's not this, then the tire should even out after a short ride, assuming you stored it correctly.

Correct storage of unused tires doesn't really have position as a factor. The critical issues are temperature and environmental pollutants. Tires are made from organic material and they should be stored in a cool, dry place, away from sunlight (UV) and pollutants that are detrimental to rubber, such as ozone that can be created by the stereotypical example of electric motors from refrigerators. Tires will naturally degrade, but if you store it well, it should still be serviceable after many years. I have tires that are more than 10 years old that look and ride fine, for example.
Mr. Fly is offline   Reply With Quote
Old 07-09-12, 08:54 PM   #3
Bill Kapaun
Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Bikes: 86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
Posts: 9,272
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 48 Post(s)
I think you need to remount them straight.
Is the "bump" by the valve stem?
Bill Kapaun is offline   Reply With Quote
Old 07-09-12, 09:10 PM   #4
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,660
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 217 Post(s)
Sometimes tires stored flat take a set, especially if the sidewalls are a bit dried out. Car tires do the same thing. Once they're inflated and ridden the constant flexing works the set back out, and it won't be long before all memory of the flat spot is gone.

BTW- if the tire isn't round yet, riding with slightly lower pressure massages out the set faster.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.

Last edited by FBinNY; 07-09-12 at 09:14 PM.
FBinNY is offline   Reply With Quote
Old 07-09-12, 09:11 PM   #5
MyBikeGotStolen
Senior Member
Thread Starter
 
Join Date: Dec 2006
Location: Jacksonville Florida
Bikes: Raleigh Glacier MTB/Commuter. Cannondale CAAD5, Windsor Timeline fixed gear
Posts: 765
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for the replies. I will check the seating again tomorrow, but I am pretty good at doing the partial inflate/check bead/fully inflate as I air up newly mounted tires.
MyBikeGotStolen is offline   Reply With Quote
Old 07-09-12, 09:30 PM   #6
prathmann
Senior Member
 
Join Date: Nov 2008
Location: Bay Area, Calif.
Bikes:
Posts: 6,087
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 79 Post(s)
I stuff mine inside a plastic garbage bag and tie it closed to minimize air circulation (which might include ozone and other harmful pollutants. Keep the bag in an indoor closet so there aren't any extreme temperatures. But I've never paid any attention to orientation or folds and they've always gone back on without any flat spots or bumps.
prathmann is offline   Reply With Quote
Old 07-10-12, 02:00 AM   #7
speedy25
Senior Member
 
Join Date: Mar 2012
Location: NE oHIo
Bikes: Specialized, Trek, Diamondback, Schwinn, Peugeot
Posts: 553
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Ozone is your biggest enemy in long term storage. The anti ozonant chemical typically used in rubber is staining (so it cant be used in white or gum formulas) and semi expensive (compared to all the other ingredients of a tire) so it isnt typically used. Storing in an airtight container of some sort is best.

-Pete
speedy25 is offline   Reply With Quote
Old 07-10-12, 09:33 PM   #8
MyBikeGotStolen
Senior Member
Thread Starter
 
Join Date: Dec 2006
Location: Jacksonville Florida
Bikes: Raleigh Glacier MTB/Commuter. Cannondale CAAD5, Windsor Timeline fixed gear
Posts: 765
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for the info everyone! I checked the tire today and noticed it has a bit of a bulge on the side in the same spot the dip is, so I think its just an old dead tire. The back tire did seem to straighten out a lot, so I will keep keep that one, and trash this front tire. I did unmount, then remount the tire hoping it was something I did wrong, but it stayed the same.
MyBikeGotStolen is offline   Reply With Quote
Old 07-10-12, 09:52 PM   #9
Doug64
Senior Member
 
Doug64's Avatar
 
Join Date: Mar 2009
Location: Oregon
Bikes:
Posts: 3,892
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 44 Post(s)
I'm pretty fortunate. My wife lets me store our extra tires under the bed in the spare room.
Doug64 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 10:57 AM.