Pirelli unveils new lightweight P Zero Race SL tubular TPU tubular tire for WorldTour teams
Pirelli has launched a new tubular tire fitted with a special inner tube which it claims guarantees a reduction in total tire weight of more than 10% while maintaining the same grip, smoothness and reliability. The Italian brand claims 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 kicks off on May 8.
While Pirelli recognizes that the future is tubeless, he recognizes that most pro teams still use tubes, which is why he is not halting the development of “ tubs ”, but rather is, says it, “raising the bar even higher for a product which, throughout its history, has rarely seen major technical innovations.
Pirelli therefore claims that the P Zero Race Tub SL is an innovation that will redefine the tubular bicycle tire.
While pro-level tubular tires traditionally use latex inner tubes, the new Pirelli P Zero Race Tub SL uses TPU, or thermoplastic polyurethane. TPU is already used notably by inner tube maker Tubolito to make their signature orange tubes which weigh just 23g, but Pirelli says the material is being applied to the inner tube of a tube for the first time, claiming that it took two years of development before that. gave the expected results.
According to Pirelli, the TPU offers the same speed, performance and puncture protection as latex tubing, but with significant weight reduction and total sealing, eliminating the gradual pressure drop of traditional tubing with rubber tubing. latex.
The housing of the P Zero Race Tub SL is Corespun with a TPI count of 320. It uses Pirelli’s latest generation SmartEVO compound, which the company says has been developed and tested by road crews to improve handling, ascent speed, provides excellent puncture protection and better control at high speeds.
The Pirelli P Zero Race Tub SL is only available in a 26mm size and weighs 275g. The original P Zero Velo tub weighed 300g in 25mm and 320g in 28mm – Pirelli seems to base the overall weight savings on the 28mm version.
For comparison, the Continental Competition butyl-tube tube weighs 280g in the 25mm size – but the Pro LTD version, which has a latex tube and is not readily available to the general public – is likely to be lighter.
All of Pirelli’s WorldTour team partners had the opportunity to choose the new version of the tubular before the Grand Tours and Pirelli says it is likely that GC riders such as Simon Yates and Esteban Chaves for BikeExchange or Vincenzo Nibali for Trek-Segafredo will be overlapping them.
Kevin Tabotta, BikeExchange Team Performance Director, said: “This new Pirelli tire is a great way to reduce the bike’s weight by 100g – which is a pretty big improvement, and normally not easy to find in a bike. high-end racing. Really impressed, we did some blind testing. The tires performed exactly as we expected, but now lighter! “
Pirelli says the P Zero Race Tub SL will hit the market soon, priced at £ 99.90.