Pirelli P Zero Race Tub SL tyres use plastic inner tube
Pirelli’s latest pro tyre for the 2021 Giro is the Pirelli P Zero Race SL tubular.
The 2021 Giro d’Italia will see it used by Simon Yates and Esteban Chaves for Team BikeExchange, Nibali’s Trek-Segafredo and AG2R Citröen.
How will it affect me?
It won’t. YOU probably don’t use tubs and even if you did you probably wouldn’t fork out £100 a tyre on one of these. This is more of a ‘pro thing’ than a consumer thing.
That said, I’m down to my last tub and the tyre needs to come off for a trueing. IT would be rude not to add a raster race tyre, so #Maybe.
Will it make them faster?
Hmm. Yes, probably a bit faster.
The tyres are 35g/10% lighter than before giving a tyre weight of 275g. The latest-generation SmartEVO Compound is used, we see the 320 TPI construction and overall the handling and grip will probably be unchanged.
There will probably also be near-zero pressure loss if used over longer races.
Why is it faster?
It’s a combination of lower spinning weight (think acceleration and marginal absolute weight) and a better rolling resistance (think friction between the layers of the tyres construction).