The Ford Barn

Phred · 05-09-2013, 06:21 AM

If the proper sized tube were not available, any real world experiences on whether a 19" tube would perform satifactorily in a 21" tire or vice-versa?

QGolden · 05-09-2013, 06:40 AM

"Back in the day" I put tubes in tires that were an inch or so "too small" with no problem. I think the quality of tubes today is not what it used to be, and some may say that the extra stretch could be detrimental. I have heard a Motorcycle tube can be used on a 21. I am sure someone here will tell you if the valve stem is in the right spot. 21 is a common front wheel size amongst the Harley set.

Houston Rodder · 05-09-2013, 10:09 AM

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Not sure about the answer to your question but I have used tubes that were a little smaller than required in 19" tires. On a long trip in my coupe I blew two old tubes and was forced to quickly source a new one. Tractor Supply carries close sizes that got me on my way.

05-09-2013, 06:21 AM	#1
Phred Senior Member Join Date: May 2010 Location: IL Posts: 303	Tire Tubes If the proper sized tube were not available, any real world experiences on whether a 19" tube would perform satifactorily in a 21" tire or vice-versa?

05-09-2013, 06:40 AM	#2
QGolden Senior Member Join Date: Sep 2011 Location: Alton, NH Posts: 1,231	Re: Tire Tubes "Back in the day" I put tubes in tires that were an inch or so "too small" with no problem. I think the quality of tubes today is not what it used to be, and some may say that the extra stretch could be detrimental. I have heard a Motorcycle tube can be used on a 21. I am sure someone here will tell you if the valve stem is in the right spot. 21 is a common front wheel size amongst the Harley set. __________________ It's not what people think they know that will hurt them, it is what they think they know that aint so! -Mark Twain. It is the very things that we think we know, that keep us from learning what we should know.- Unknown

05-09-2013, 10:09 AM	#3
Houston Rodder Member Join Date: Feb 2011 Location: Spring, TX Posts: 55	Re: Tire Tubes Sponsored Links (Register now to hide all advertisements) Not sure about the answer to your question but I have used tubes that were a little smaller than required in 19" tires. On a long trip in my coupe I blew two old tubes and was forced to quickly source a new one. Tractor Supply carries close sizes that got me on my way.