Pirelli P Zero Race 4S Tubeless Ready clincher

PZERO Race 4S TLR is our first 4-season racing tire with tubeless technology capable of providing high grip in all weather conditions and greater puncture protection, while maintaining the characteristics of a racing tire from our PZERO range Race. This result was achieved thanks to the combination of SPEEDCORE tubeless technology, our latest evolution in terms of carcass, and SMARTNET Silica which has the best formulation for wet grip and chemical grip among our compounds. Like the rest of the PZERO Race range, the PZERO Race 4S TLR is also produced in Italy in our new factory in Bollate.

Technologies

SmartNet Silica

Directly from its experience and know-how in Motorsport, Pirelli introduces a patented racing formulation into cycling, capable of guaranteeing maximum grip and smoothness on dry and wet surfaces. The elongated shape of the Silica molecules, unlike what has been done so far with the common spherical molecular shaped silica, allows for a new level of sophistication of the tread compound, with consequent improvement in drivability thanks to the possibility of orienting the compound in the direction of rolling. Furthermore, the improvement of the mechanical resistance of the tread achieved by the improved interaction of the Silica with other components (such as the aramid fibers directly dispersed in the compound), increases the protection against punctures and the durability of the rubber.

Speedcore

The most high-performance tubeless-ready road structure in our range involves the use of a layer of aramid-mixed compound that covers the internal layer of the tire, allowing it to remain airtight. This new structure makes the tire more resistant, thanks to the presence of aramid, but at the same time less rigid and faster, due to the greater flexibility of the compound compared to a bead-to-bead fabric. The carcass is then completed with a 120tpi nylon canvas and an anti-puncture layer, also in aramid.
SPEEDCORE is a new patent-pending technology
SPEEDCORE is for exclusive use of PZERO Race models with tubeless technology
SPEEDCORE is the choice of the World Tour Factory Teams