Inner Tubes
- Thread starter Eagle43
- Start date
petehoovie
Well-known member
See > https://www.millertire.com/products/tubes/20-21-22-tubes/4-40-4-75-20-21-tube-tr-135/
Description
This tube fits 4.40-20, 4.40-21, 4.75-20 & 4.75-21 tires.
Has a TR-135 valve stem used in antique car tires.
Valve Height 2.25", Diameter 0.625"
Valve is centered and can be bent by hand for angle needed.
Description
This tube fits 4.40-20, 4.40-21, 4.75-20 & 4.75-21 tires.
Has a TR-135 valve stem used in antique car tires.
Valve Height 2.25", Diameter 0.625"
Valve is centered and can be bent by hand for angle needed.
hueyhoolihan
Well-known member
0
remember that the valve must be the proper size at the base, and its length and the shape must be right too. and nowadays they make different ones for radial and bias ply tires. ...retailers claim it's necessary...i have my doubts.
at one time in my life i wouldn't have given a second thought to using a motorcycle tube in an automobile tire, but these days there will, no doubt, be those that blanche at the very thought.
anecdote alert!!!..and speaking of tires and tube and inappropriateness..
not all that long ago i was on a long solo bicycle tour and had completely destroyed the tube on one of my tires. i had no replacement and it was not a candidate for a patch, so i cut the tube on both sides of the tear, threw that piece away, and tied the two ends together. of course this turned the approximately 27" tube into about a 20" tube with a big knot in it. but tubes stretch.... i pumped 60 PSI in it and rode twenty miles to the next town with a slight "hitch in my get-a-long" the whole way.
remember that the valve must be the proper size at the base, and its length and the shape must be right too. and nowadays they make different ones for radial and bias ply tires. ...retailers claim it's necessary...i have my doubts.
at one time in my life i wouldn't have given a second thought to using a motorcycle tube in an automobile tire, but these days there will, no doubt, be those that blanche at the very thought.
anecdote alert!!!..and speaking of tires and tube and inappropriateness..
not all that long ago i was on a long solo bicycle tour and had completely destroyed the tube on one of my tires. i had no replacement and it was not a candidate for a patch, so i cut the tube on both sides of the tear, threw that piece away, and tied the two ends together. of course this turned the approximately 27" tube into about a 20" tube with a big knot in it. but tubes stretch.... i pumped 60 PSI in it and rode twenty miles to the next town with a slight "hitch in my get-a-long" the whole way.
Last edited:
Ray in La Mesa
Well-known member
Hueyhoolihan: One does what one has to in the situation. I like the ingenuity of the temporary fix!
glennpm
Well-known member
Love it
ford38v8
Well-known member
As the subject wanders...
Long, long ago, just before dawn on a rainy Sunday morning, this skinny young paperboy with full paper sacks stopped at a gas station to top off his brand new English 3 speed racing bike tires up to 60 PSI.
I asked the station attendant how i'd know when my tires were full.
He told me it was automatic, so I pumped and pumped and pumped...
Until my tire blew up in my face. That was the start of a very unpleasant day for this 12 year old.
Long, long ago, just before dawn on a rainy Sunday morning, this skinny young paperboy with full paper sacks stopped at a gas station to top off his brand new English 3 speed racing bike tires up to 60 PSI.
I asked the station attendant how i'd know when my tires were full.
He told me it was automatic, so I pumped and pumped and pumped...
Until my tire blew up in my face. That was the start of a very unpleasant day for this 12 year old.
hueyhoolihan
Well-known member
haha..
worked at a SOHIO gas station for a couple of years in my late teens. we had one of those red air pumps outside. hooked up to our 200PSI compressor tank. it powered the air pump, tire changer and air tools. the automatic shutoff didn't work on the pump and the owner wouldn't have it fixed. so for a couple summers me and the other guys would be treated to the tune of exploding bicycle tire tubes each weekend.
it's a wonder no one was ever injured. and although a few people got angry and complained, for the most part people took it in stride.
hope you weren't living in central ohio in the late 60's.
I guess nobody has an answer to my original question so I guess I'll order the 4.10/4.50 motorcycle inner tube from Amazon and hope for the best. According to one discussion website, a radial tube is a better choice because of the thicker rubber.. https://forums.aaca.org/topic/315290-radial-tubes-in-bias-tirescomments/ . However GhatGPT warns against it.
JayChicago
Well-known member
Why? Why does AI warn against radial tubes?
AI says, "Size: A 4.10/4.50-19 tube can physically expand to fit a 4.50-19 tire, so the size itself is acceptable.
Valve stem: The TR4 stem is intended for motorcycle rims. Many Model A artillery wheels use a larger automotive valve stem hole and typically take a TR13 or TR15 stem. A TR4 stem may be loose in the wheel unless an adapter or grommet is used.
Construction: Motorcycle tubes are designed for motorcycle tire and rim profiles. While they may work in a pinch, they're not the best choice for a 2,300-pound antique automobile."
I've recently had two "antique" tubes fail because the valve stem wore through the side where it goes through the rim. In any case, I've ordered these and I think I can get them to work even though the hole is way too big.
hueyhoolihan
Well-known member
my '41 uses a TR15 sized hole (the larger one) for it's standard rims and the modern equivalent stem for a tubeless tire, if anyone's interested, is a TRA15. and i just bought four of them two days ago at Autozone. they actually had four in stock. i was shocked, i tell you, shocked! ha
I got the tubes (2 for $40) and installed one. They seem about the same weight as the old one and don't think there is any difference between bias-ply and radial tubes. The only issue I had was the size of the valve stem. I solved the small diameter/large hole problem with a rubber plumbing washer in the hole squeezed between two 9/16" washers. Since the whole stem is threaded and nuts were supplied the valve stem is solidly locked in place. The stem only just protruded through the felloe (inner rim) so I screwed on a valve extender. I now have a spare tube which will also fit my 1926 Chevy's 21" tires. I know it's not a Ford but I added some pictures. I had to find and use my split rim tire tool to dismount and mount the tire like you do on a Model T. The car is a 1929 Willys Whippet that I completely restored. With the valve extension I think it looks good.
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