New Pirelli SmarTUBE '70% lighter' than standard inner tube

New superlight TPU inner tubes launched for road, gravel and mtb

Pirelli SmarTUBE
(Image credit: Pirelli)

Pirelli has launched a range of superlight inner tubes for road, gravel and mtb made from thermoplastic polyurethane (TPU).

The Italian tyre brand says the new SmarTUBE promises a weight reduction of up to 70% over regular inner tubes. The lightest P Zero road version weighs a claimed 35g compared to the 125g of a butyl rubber 700x25/32c Continental tube.

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Simon Smythe

Simon Smythe is a hugely experienced cycling tech writer, who has been writing for Cycling Weekly since 2003. Until recently he was our senior tech writer. In his cycling career Simon has mostly focused on time trialling with a national medal, a few open wins and his club's 30-mile record in his palmares. These days he spends most of his time testing road bikes, or on a tandem doing the school run with his younger son.