Currently have 3 repaired punctures in my inner tube. How many more before replacing it?
till there isn't any more room for new patches or when an old patch starts to leak/the hole is too large.
you only own one inner tube?
why replace it at all, the patched bits are now stronger than just rubber.
how long is a piece of string?
when it is irreparable obviously, altho when a tube is festooned with patches it might be an idea to switch it to your hack bike, all that extra weight! 🙂
inner-tube,you say ?.........
ah yes,I remember my dad telling me about those,when I was young 😀
I have one with 14+ patches on it...
When I need a new chainstay protector
If the valve is broke, or if you're patching over patches.
At 10-20p for a patch, its cheaper than a new tube.
what's the environmental impact of using patches and vulcanising solution, over throwing an inner tube away?