Pirelli unveils new lightweight P Zero Race SL tubular with TPU inner tube for WorldTour teams

New tyres claimed to lighten pro bikes by 100g thanks to inner tubes made from thermoplastic polyurethane – which will "redefine the tubular bicycle tyre"

Pirelli P Zero Race Tub SL
(Image credit: Claudia Vitamina C)

Pirelli has launched a new tubular tyre equipped with a special inner tube that it says guarantees a reduction in overall tyre weight of more than 10 per cent while maintaining the same grip, smoothness and reliability. The Italian brand says it will be the “ace up the sleeve” of its sponsored WorldTour teams – BikeExchange, Trek-Segafredo and Ag2r Citröen – at the Giro d’Italia, which starts on May 8.

While Pirelli acknowledges that the future is tubeless, it recognises that most pro teams still use tubulars, which is why it’s not halting development of ‘tubs’ but is instead, it says, "raising the bar even higher for a product which, in the course of its history, has rarely seen major technical innovations."

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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.