30X3 Brass Stem Inner Tubes

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Tim Hansen
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30X3 Brass Stem Inner Tubes

Post by Tim Hansen » Wed Aug 06, 2025 5:28 pm

Seem 30X3 Brass Stem Inner Tubes are not available. I would use the Hartford rubber stem tubes but the stem does not fit through the rim hole. Can a 30X3.5 Inner tube be used on a 30X3 wood fellow wheel?

Any other suggestions?

Thanks

Tim

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ewdysar
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Re: 30X3 Brass Stem Inner Tubes

Post by ewdysar » Wed Aug 06, 2025 5:35 pm

I bought Hartford brass stem 30x3 tubes from Coker a few months ago. Their website currently shows them as orderable. They seem to be pretty good at showing out of stock when they are.

https://cokertire.com/accessories/30x3- ... -stem.html

Keep crankin',
Eric


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Tim Hansen
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Re: 30X3 Brass Stem Inner Tubes

Post by Tim Hansen » Wed Aug 06, 2025 7:21 pm

Called Coker today along with every other supplier I know and no one has 30X3 brass stem tubes in stock.

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Re: 30X3 Brass Stem Inner Tubes

Post by RajoRacer » Wed Aug 06, 2025 7:32 pm

Nor flaps - I'm on the waiting list !


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Re: 30X3 Brass Stem Inner Tubes

Post by Allan » Thu Aug 07, 2025 1:03 am

Here you go Steve. Not a $54 flap, snap fit rim liners cut from old 13-14" inner tubes, usually free from any tyre fitter. Give the waiting list a miss, unless of course you are looking for 21" flaps for split rims.
20250703_171315.jpg
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Re: 30X3 Brass Stem Inner Tubes

Post by Humblej » Thu Aug 07, 2025 6:26 am

Inner tubes expand when aired up, some tubes will fit several different size tires and are marked what size tire(s) they fit. Unless a tube is specifically marked that it will fit a 30x3 and a 30x3.5 I would not assume that it fits both.

Another option would be to get a tube with a rubber stem and convert it to a metal stem. Just cut off the rubber stem and clamp on a metal stem. Cheaper than buying a metal stem tube and very easy to do. Lots of older posts on how to do it.


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Tim Hansen
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Re: 30X3 Brass Stem Inner Tubes

Post by Tim Hansen » Thu Aug 07, 2025 8:58 am

Thanks. I put a WTB metal clamp on stem message on the classifieds. Just a word or caution, the current Hartford 30X3 rubber stem tubes do not fit the non-demountable rim hole or the demountable rim hole, You would have to drill the hole oversize to allow them to fit.

Tim

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Re: 30X3 Brass Stem Inner Tubes

Post by Steve Jelf » Thu Aug 07, 2025 10:01 am

Yes, original metal stems do clamp on, now that I think about it. I haven't bought any recently, but the last time I did they were not hard to find and not very expensive at swap meets. Long ago I got in the habit of buying rubber stem tubes and converting them to metal stems. The $29 difference in prices per tube made converting my own tubes the way to go.

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Re: 30X3 Brass Stem Inner Tubes

Post by RajoRacer » Thu Aug 07, 2025 11:08 am

Do what you will, Allan - a rim strip and a flap achieve different results.

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Re: 30X3 Brass Stem Inner Tubes

Post by Steve Jelf » Thu Aug 07, 2025 12:28 pm

Yes, there's no comparison. Flaps deplete your funds much more rapidly. :)
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Re: 30X3 Brass Stem Inner Tubes

Post by RajoRacer » Thu Aug 07, 2025 12:54 pm

I'm not that "thrifty", Steve !


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Re: 30X3 Brass Stem Inner Tubes

Post by Original Smith » Thu Aug 07, 2025 5:05 pm

The valve stems Ford used are not currently available. The ones being used now were originally used on much larger cars than Fords, and even though they will work, I don't like them! The Model A hobby was successful in making correct valve stems for their cars, why can't we all take up a collection, and make the valve stems for our cars? BTW, the bridge washers currently available are not correct either. Why do our suppliers peddle this junk?


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Re: 30X3 Brass Stem Inner Tubes

Post by Allan » Thu Aug 07, 2025 9:23 pm

Bang on Steve. A set of five flaps will deplete your wallet to the tune of $270 plus shipping!
They also can make fitting tyres more difficult. I recently helped a friend in cold old Ballarat to fit a new Blockley tyre on his spare rim. Getting the old T driver off was not that bad, but things got a bit more difficult from there. Whatever they use to make flaps these days is not normal rubber. Rather than fexible, It's more like licorice. The flap as removed had moulded itself to the shape of the oversized T driver tyre and when fitted inside the Blockley tyre it presented with a considerable ridge of material protruding between the beads of the Blockley tyre.

This protruding ridge presented problems. We clamped the two beads and the valve stem in place and protruded to lever both beads on as usual. Each time we had to push the ridge of flap in between the bead edges before levering. The closer we got to the finish, the more stuffing we had to do. Thankfully, there were two of us. Warm weather would have helped, but sometimes you just have to do what is necessary.

With a rim liner, none of this would apply.

Allan from down under.


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Re: 30X3 Brass Stem Inner Tubes

Post by Original Smith » Sun Aug 10, 2025 12:29 pm

Steve: I've tried several times to contact you. You don't answer.
One thing that is being omitted here is the Schrader 888. I have been cutting off rubber valve stems for over 20 years. I like the 888 over the 777 because it does the same thing, and probably reduces the weight slightly. It sticks out far enough to do the same job.
Todays question is the Hartford tubes. Has anyone successfully removed one of them? I have a new one and hesitate to remove the valve stem, because it doesn't look rubber to me. It appears to be plastic. Comments?

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Re: 30X3 Brass Stem Inner Tubes

Post by RajoRacer » Sun Aug 10, 2025 1:17 pm

Which "Steve" Larry - Jelf or myself ?

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Re: 30X3 Brass Stem Inner Tubes

Post by Steve Jelf » Sun Aug 10, 2025 2:47 pm

If the question is for me, I don't know. I haven't changed valve stems since 2023, so I have no experience with the current tubes.

If anybody is trying to reach me and can't, I'm useless for that too. Each day, life in the Digital Age becomes a deeper mystery to me. It's miraculous that I can still post a comment in passable English.
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Re: 30X3 Brass Stem Inner Tubes

Post by Allan » Mon Aug 11, 2025 1:58 am

The flange on the valve stem and the ridge on the bridge washer make a physicsl connection when the stem is fitted. It should make no difference if the stem looks a little "plasticy". All that is needed is some crush. Who knows? Maybe the new stuff won't ever blow off the brass stem tube like it has on tubes in the past.

Allan from down under.

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