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post #1 of 10 (permalink) Old 07-21-2014, 06:34 AM Thread Starter
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tire valve stem replacement

anyone here replaced the valve stem without taking the wheel/tire off the bike? was putting in air on the rear tire yesterday and the valve stem broke off.

any info would be much appreciated. thanks.
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post #2 of 10 (permalink) Old 07-21-2014, 06:46 AM
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The valve is put in from the inside of the tire. You just have to break the bead on one side (theoreticly) to install a new one.....
I've only fine this on car wheels, the bike having a narrower tire this might be more difficult.

I suggest you replace it with an angled valve stem....

http://bikeeffects.com/products.asp?cat=8530


I'd say you need to take the wheel off the bike though....

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Last edited by Knifemaker; 07-21-2014 at 06:50 AM.
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post #3 of 10 (permalink) Old 07-21-2014, 11:01 AM
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Quote:
Originally Posted by Knifemaker View Post
The valve is put in from the inside of the tire. You just have to break the bead on one side (theoreticly) to install a new one.....
I've only fine this on car wheels, the bike having a narrower tire this might be more difficult.

I suggest you replace it with an angled valve stem....

http://bikeeffects.com/products.asp?cat=8530


I'd say you need to take the wheel off the bike though....
....just a thought.
Angled 45 degree Valve Stems might be better ...allowing use of different type/size of air chucks and/or easier air application/use.


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post #4 of 10 (permalink) Old 07-21-2014, 12:45 PM
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Quote:
Originally Posted by WilliamTech View Post
....just a thought.
Angled 45 degree Valve Stems might be better ...allowing use of different type/size of air chucks and/or easier air application/use.

My bike has the angled ones shown in my link. No problems with any air chuck I've come across. They are actually 83 degrees. 45 degree ones ? Doubt there's really much of a difference. The rear on the Vulcan is a pain more than the front.

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post #5 of 10 (permalink) Old 07-21-2014, 02:21 PM
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I've done it on the bike. Break the bead, use a tire tool to hold it flat and replace. It will be easier with a rubber stem, but I did it with a metal angled one that screws on. Btw, the ones I bought were actually for a scooter, but it has held up great.

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post #6 of 10 (permalink) Old 07-21-2014, 07:41 PM Thread Starter
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Thanks for the tips folks.
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post #7 of 10 (permalink) Old 07-22-2014, 01:24 PM
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It can be done. I used a large C clamp to break the bead at the valve stem, after that out with the old in with the new. If it won't re-bead, a ratchet strap will do the trick. Put the strap around the middle of the tire, tighten, add air.
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post #8 of 10 (permalink) Old 07-22-2014, 07:15 PM Thread Starter
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Quote:
Originally Posted by Mike805 View Post
It can be done. I used a large C clamp to break the bead at the valve stem, after that out with the old in with the new. If it won't re-bead, a ratchet strap will do the trick. Put the strap around the middle of the tire, tighten, add air.
Nice! Will try thanks.
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post #9 of 10 (permalink) Old 09-09-2014, 04:08 PM
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Quote:
Originally Posted by Knifemaker View Post
My bike has the angled ones shown in my link. No problems with any air chuck I've come across. They are actually 83 degrees. 45 degree ones ? Doubt there's really much of a difference. The rear on the Vulcan is a pain more than the front.
I have carried a small round headed air chuck screwed onto a 1/4" "M" style quick connector male plug in my pocket when going for a long ride when I might need to air up a tire away from home. I can plug my chuck into the 1/4" female quick connector of any airline where a mechanic works and uses various air tools. It works well on both front and rear wheels, although you may have to roll the bike a few feet to get the valve stem into an easy to reach position.

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post #10 of 10 (permalink) Old 09-10-2014, 11:41 AM
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Yes it can be done. But it can be a hassle. I have used a C clamp to hold the tire bead in far enough to reach the valve stem hole. I have never used anything but straight rubber stems. These can be pulled through fairly easily with a pair of pliers. I have tried the metal ones with a nut on them, they always leaked. On the rear, where room is limited, I found you can use an angled screw on extension http://www.amazon.com/Wheel-Masters-...alve+extenders to put air in the tire, then remove it.

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