Originally Posted by
johnr783
You say "rubber" I say Condom"
Actually, I don't.
I'm old enough to remember a time when we used pieces of old tubes to repair punctures.
If you really want to research the recycling of bicycle equipment you should go to Cuba. Decades of economic sanctions have made the Cuban people experts at 'make do and mend'. When I was there three years ago it was amazing what they could do to keep old bikes on the road.