The presence of lead in inner tubes is not new (and it is the case for the vast majority of inner tubes on the market). If lead is a problem today, it is because we are witnessing a desire to revalue materials as best as possible. No, our planet is not extensible, it is well and truly limited in resources. It is then a question of limiting the extraction (then the burying) of raw materials.
In parallel, there is the will to recycle inner tubes. And there... it's a problem not foreseen in the initial specifications of an inner tube that arises: by recycling them into a belt or a bow tie, the contact time with the skin has nothing to do with the initial use.
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