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 05-30-06, 04:34 PM   #1
EJ123
'05 NUEser
Thread Starter
 
EJ123's Avatar
 
Join Date: Aug 2005
Bikes:
Posts: 3,370
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Somethings wrong with the presta valve.

Earlier the air was low in my front tire so I go and get the co2. I turned the little knob, on the valve, up to open it. Then pf it came off along with the stick thing it was on. No air came out of the tire, so I guessed it was ok..
Then I pushed down on the center valve part where the piece came off of and all the air flew out really fast. Whew I thought I had slime in there and I was afraid it would go everywhere. What the heck happened? I haven't had time to examine it closely since the garage was like 100 in there, so it could be just some minor incident that maybe could be fixed without going to my lbs. Ill post pics later.
EJ123 is offline   Reply With Quote
Old 05-30-06, 04:53 PM   #2
Old_Fart
Senior Member
 
Old_Fart's Avatar
 
Join Date: Mar 2006
Location: In a cardboard box by Alki beach.
Bikes:
Posts: 346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like the valve came apart, if I correctly understand your explanation. When you unsrew the tip, it is not supposed to come off, it should stay attached. If it comes off, you should just replace the tube.

And get yourself a decent floor pump. CO2 is meant for roadside emergency repairs, not pumping up your tire before a ride. If you use CO2 to repair a tire, it is usually recommended that you deflate it and refill with air later when you have the time.
Old_Fart is offline   Reply With Quote
Old 05-30-06, 09:38 PM   #3
EJ123
'05 NUEser
Thread Starter
 
EJ123's Avatar
 
Join Date: Aug 2005
Bikes:
Posts: 3,370
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oh yeah when i use the handheld co2 thing, its really hard to get it off the valve. I usually have to jam it in every direction to remove it haha.
EJ123 is offline   Reply With Quote
Old 05-31-06, 04:31 AM   #4
Deanster04
Senior Member
 
Deanster04's Avatar
 
Join Date: Dec 2005
Location: Boulder, Colorado
Bikes: Cinelli Supercoursa 69, Ritchey Breakaway Cross, Mondonico Diamond Extra 05, Coors Light Greg Lemond (built by Scapin) 88, Scapin MTB, Stumpjumper 83, Specialized Stumpjumper M4, Lemond Poprad 2001
Posts: 1,366
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by EJ123
Oh yeah when i use the handheld co2 thing, its really hard to get it off the valve. I usually have to jam it in every direction to remove it haha.
There you have your answer. Working the stem thingy back and forth will usually cause it to crack and break. I have ridden wheels with that missing but tubes are cheap.
Deanster04 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 09:59 PM.