Tire Valve Extenders

I was at my local NAPA auto parts store and saw some tire valve
extenders on the display rack. Ah, that's just what I needed.

The tire valve on my new Coker with an Airfoil rim gets all sucked up
inside the rim when the tire is deflated. It makes it hard to reach the
valve when inflating the tire. I have the same problem on my trials uni
with a Monty rim. Quite inconvenient. The tire valve extenders solve
that problem by extending the length of the valve. They screw on the
valve and add an additional 3/4" to 1" of length. Perfect.

I have also found the valve extenders to be very useful for filling up
my air seats. The valve on my air seats is next to the rear bumper and
there isn't a lot of room there to fit a tire pump on there. The small
emergency pump that I carry with me on the trail is especially difficult
to fit on the air seat valve. Put the valve extender on the air seat
valve and the problem is solved. I now carry a valve extender in my
little bag of tools that I take with me when I ride. Next time I get an
air seat flat on the trail it will be easier to inflate.

The valve extenders are about $5 for four at my local auto parts store.
They fit Schrader valves (the normal valves on cars and unicycles).
Bike shops carry valve extenders for Presta valves. They're the perfect
thing for unicycles with deep section rims like the Coker Airfoil rim or
the Monty trials rim. Also handy for making it easier to pump up an air
seat.

Handy little things. I give them a 5 out of 5 for being so useful.
I'll attach a picture to show what they look like.

If you have an Airfoil rim, Monty rim, or an air seat, pick up some
valve extenders. You'll love them.


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That's an excellent idea for air saddles
I just changed the design on my air saddle and built another one
yesterday. This one has the valve stem stickiing out through the bottom
of the seat base and it a difficult to get a pump on it. Instead of
using a "free-floating" air pillow, I fabricated a foam base/cushion
that the inner tube is nestled inside. This gets rid of that "wiggly"
feeling than some air saddles exhibit,
If you're interested in seeing my new design, I'll post a few pictures
of it after I get off work this afternoon.


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Krashin'Kenny - Crash Tested

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Any of you have instructions to buil a homemaid air saddle??

Either pillow and cover, measures, advices...

Thanks!!

Graphical answers would be higly appreciated!! such scale draws and
photos of the cover/pillow dismounted.


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monociclos - Buying a 24' Muni!!!!
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monociclos,
I made an inexpensive air saddle conversion just a few days ago. The
only problem with this one was that it was a viscount-type saddle
without a handle. I'll post some pictures (after I get home from work)
of the updated Miyata air saddle that I converted.
Here's the link to my first "quick fix":

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b/home/sites/site15/web/db_connect.php/b on line b3/bbr /



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Nice, John. I have some on my latest bike parts order, but I didn't
know they were available at NAPA!


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monociclos wrote:
*Any of you have instructions to buil a homemaid air saddle??

Either pillow and cover, measures, advices...

Thanks!!

Graphical answers would be higly appreciated!! such scale draws and
photos of the cover/pillow dismounted. *

I have a gallery that shows how I make my air seats: 'Air Seat Gallery'
(http://www.unicyclist.com/gallery/Airseat)

I don't have any patterns for the seat cover or air pillow. The seat
cover came from unicycle.com. The air pillow was something I made
myself by tracing around the foam from a Miyata saddle.


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Krashin'Kenny wrote:
*That's an excellent idea for air saddles
I just changed the design on my air saddle and built another one
yesterday. This one has the valve stem stickiing out through the
bottom of the seat base and it a difficult to get a pump on it.
Instead of using a "free-floating" air pillow, I fabricated a foam
base/cushion that the inner tube is nestled inside. This gets rid of
that "wiggly" feeling than some air saddles exhibit,
If you're interested in seeing my new design, I'll post a few
pictures of it after I get off work this afternoon. *

Yes, post more pictures of your new setup. The more ideas we get for
different air saddle designs the better air saddles can be. My air seat
design isn't perfect and can use some improvement, I just don't know
what or how to improve it now. I need ideas.

I don't leave the valve extender on the air seat valve. That would make
the valve more vulnerable to damage or catastrophic failure due to the
valve breaking off. I just carry the valve extender with me in my tool
bag so I'll have it if I need it.


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I used a piece of 3" thick EVA foam and traced a pattern using the
original Miyata cushion as a pattern


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Next, I removed 2" of the foam to make a "cavern" for the inner tube to
set in. This prevents the "wiggly" feeling that is very evident in some
air saddles


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To finish the assembly, I drilled a hole in the base of the saddle and
installed my "homemade" (by a friend) cover using the original Miyata
cover retaining clips. The best part of this design is that the tube
doesn't move on the saddle base. Here's the finished product:


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