P ZEROÔäó Velo Tub is the result of several months of intensive development work of the R&D department of Pirelli with World Tour PRO cyclists and mechanics. All the elements of the final version of P ZEROÔäó Velo Tub has been tested, modified and tuned on that environment: built on the finest 320tpi Corespun with aramid reinforced casing, latex inner tube for improved weight, rolling and puncture protection; Yellow Soft compound for uncompromising grip and handling performances.P ZEROÔäó Velo Tub is a ready-to-race handmade tubular tyre and is perfect for Granfondo racing as well as shorter high-paced races, while also being a solid and reliable tyre for everyday riding.World class grip performanceLatest tubular technologyApproved by World Tour PRO riders and mechanicsWinning tubular for amateurs and passionate cyclistsRacing feeling and speed48mm RVC valve