<div> Of the Rubino family, the Rubino Pro Speed provides the fastest, most supple ride, and lowest rolling resistance by using Vittoria's proprietary Graphene G+ ISOtech compounds in a 3-compound structure that is layered on a high TPI casing for the utmost in grip and durability. Intended for all-around road use.</div><div> <ul><li>220 TPI nylon casing</li><li>Graphene rubber compounds</li></ul> </div>