The Vittoria Open Corsa Evo CX is arguably Vittoria's fastest road clincher. It features a Kevlar SiO2 3D compound with added silica for lower rolling resistance grip in wet conditions when coupled with the tread pattern and improved. A Corespun 320 tpi casing provides a lighter, suppler ride and the very high thread density of ensures maximum comfort even at a high inflation pressure of 130 (max). Additionally, the Kevlar provides increased puncture resistance, grip and overall durability.