Originally Posted by
bmorey
How long do average-quality tubes last? I patched a tube three times in a row a couple of weeks back - as soon as I inflated it it got another hole in it. Threw it out and replaced it with the spare. Today, threw the spare out in disgust as I repaired a hole then it split length-wise as soon as I pumped it up. Both tubes were about 2 years old. Size was 700 x 40 pumped to 70psi.
The Murray Escort I bought for my sis in law is on original tires and inner tubes, and People have guessed it's from the late 70s. They still hold air just fine, but the tires themselves are starting to dry rot.