Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


Presta valve tool?
#1
HI everyone. I'm a very new and not so mechanical rider so have patience please. When I go to add air I put on the presta valve adapter and inflate to desired psi but when I back off on the adapter the inner valve part comes out with it and I lose "all" the air. My question is how do I tighten that inner valve part? Is there a special tool or can I just use a small wrench on the flat part in between the threads. I can't seem to finger tighten it enough... Thanks a bunch
  Reply
#2
Maybe this will help you out, do not only watch the video but read the comment area below it sometimes there is really good information there too, http://bikeride.com/presta-valve/
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#3
(06-04-2010, 05:51 PM)Bill Wrote:  Maybe this will help you out, do not only watch the video but read the comment area below it sometimes there is really good information there too, http://bikeride.com/presta-valve/

Thanks Bill. I had already watched the video and read the comments but my issue wasn't addressed there.....
  Reply
#4
Maybe Alex or someone who uses the presta valves can help. I really do not use them.
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#5
Does the problem happen with both tyres? If it's only one of them it could be that the valve has broken, there's a little spring in them that should push the valve out and seal it before you tighten the little knurled nut to fully seal it and these can break on rare occasions.

On some presta valves you can remove and replace the valve mechanism, see here: http://k0lee.com/2009/10/putting-tire-sealant-in-presta-valve-tubes/, but with others you can't, so you'll have to replace the whole inner tube if the valve has broken.
  Reply
#6
(06-05-2010, 09:39 AM)xerxes Wrote:  Does the problem happen with both tyres? If it's only one of them it could be that the valve has broken, there's a little spring in them that should push the valve out and seal it before you tighten the little knurled nut to fully seal it and these can break on rare occasions.

On some presta valves you can remove and replace the valve mechanism, see here: http://k0lee.com/2009/10/putting-tire-sealant-in-presta-valve-tubes/, but with others you can't, so you'll have to replace the whole inner tube if the valve has broken.

Thanks so much there Xerxes, those pictured are exactly like mine, they have that flat part which I assume I can use to tighten that valve mechanism with a needle nose plier... I'll give it a go tomorrow...
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
17,740
05-11-2014, 09:34 PM
Last Post: DaveM
 
20,414
04-15-2014, 10:56 AM
Last Post: nfmisso
 
20,060
04-07-2014, 05:09 AM
Last Post: Joe_W
 
12,227
11-13-2012, 10:51 PM
Last Post: Bill

Forum Jump:

[-]
10 Latest Posts
Gandolfi "Super" model 1985-86 racing bi...
Yesterday 01:33 PM
How I used to clean my bike
07-03-2025 04:43 PM
Cassette shifting Problem
07-03-2025 02:51 PM
Continued learnings from bikepacking
07-02-2025 04:50 AM
What are the pros and cons of using a 26...
07-02-2025 04:46 AM
I got new Tioga FASTR X Tires (Ask Me An...
07-02-2025 01:31 AM
Attack // Force tire style narrow front ...
07-02-2025 12:55 AM
The great thing about trikes
07-01-2025 11:10 AM
Doctors are Prescribing Cycling
07-01-2025 10:40 AM
How to improve cycling endurance? I've h...
06-30-2025 06:27 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
21 posts
no avatar 2. Flowrider
18 posts
no avatar 3. meamoantonio
14 posts
no avatar 4. Jesper
14 posts
no avatar 5. enkei
11 posts