If your car had 30x3 front tires and 30x3 1/2 rears, like my '21 touring, and you were going to buy ONE tube to carry as a spare, which size would you buy? Does it really matter?thom
My touring also has 30x3 front and 30 x 3 1/2 rear and I carry one of each tube. That said, I suppose that if I were to carry only one tube it would be the 3 1/3 as it will stretch to fit the 24" front rim. The 3 1/2" tube is fatter and would/will be a tighter fit into the skinny 3" tire, reducing the amount of fun you will savor during a roadside tube replacement.
They make different size tubes for a reason. Well, a couple of reasons, fit and ultimately safety; if it doesn't fit right it won't be safe. Good luck with your project. Bill
I'm glad you asked that question Thom.
I've been chewing on the same for awhile.
One size fits all
Dan, That's the tube I use and have had no problems. I don't have a lot of room in the Torpedo so I store a small compressor and spare tube in the bottom of my carbide generator.
I found that Lucas Tires was too high on the shipping cost. Shipping was more than the price of the tube. I ordered one from Smith & Jones.
The best way to store tubes is partially inflated.
If you store your tube(s) folded, check them periodically for cracks. Sooner or later they WILL crack where the fold is.