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


Opening Dunlop (Woods) valve
#1
[attachment=5105]

I'm having trouble inflating the tire on my Dutch bike (I now live in the UK, no longer NL, by the way). It's got what I'm pretty sure is a spring-loaded or one-way Dunlop valve. As you can imagine since the valve is on my desk, the tube is now deflated.

The problem, I think, is that I can't get the valve to open. I'm using a reasonably potent two-cylinder pedal pump, but I can't seem to force air through the valve. When everything is seated properly to pump the tire, if I contort myself to hold the nozzle of the pump as tightly against the adaptor and valve as possible, the gauge on the pump gets up to around the 5 bar/70 psi mark, but the valve still doesn't seem to open, and no air is getting into the tube.

Any thoughts on how to solve this?
  Reply
#2
Scroll down for info and links to woods valve. Could be you need a replacement.


http://sheldonbrown.com/gloss_w.html#woods
Never Give Up!!!
  Reply
#3
It might be time to convert to Presta valved tubes.
Nigel
  Reply
#4
(05-11-2014, 12:50 PM)nfmisso Wrote:  It might be time to convert to Presta valved tubes.

Just about. I decided the easiest solution was to get a new inner tube. As long as I was at it, I got one with a Schrader valve.
  Reply
#5
Yeh the schrader valve will fit without an adopter. Had no luck with presta. PITA.......YMMV.
Never Give Up!!!
  Reply
#6
In my experience, these clog up more than either schraeder or presta, but work very well otherwise. Usually you just need to replace the valve core.
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
I got new Tioga FASTR X Tires (Ask Me An...
Today 03:18 PM
Are You Riding the TDF
Today 12:20 PM
Tour de FRANCE 2025
Today 09:52 AM
What are the pros and cons of using a 26...
Today 09:46 AM
The great thing about trikes
Today 09:27 AM
Japanese Bike Brands
Today 08:27 AM
Continued learnings from bikepacking
Yesterday 11:34 PM
Gandolfi "Super" model 1985-86 racing bi...
07-04-2025 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

[-]
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
23 posts
no avatar 2. meamoantonio
17 posts
no avatar 3. Flowrider
17 posts
no avatar 4. Jesper
14 posts
no avatar 5. enkei
13 posts