The Vittoria Open Corsa CX III road tire is one of the most legendary clincher tires ever. Developed from Vittoria's legendary Corsa tubular platform, the Open Corsa delivers road feel, cornering ability, and performance you never thought possible from a clincher. Built around an amazing Corespun 320 TPI casing, the open tubular concept delivers a supple, lightweight, and smooth ride that still delivers comfort at high pressure. All new IsoGrip rubber compound has been specially engineered to roll fast and grip the tarmac, even at high speeds. A lightweight PRB 2.0 belt beneath the tread helps ward off punctures, without sacrificing weight or rolling resistance. 320 TPI casing for a smooth, supple, comfortable ride IsoGrip tread compound rolls fast and offers excellent grip PRB 2.0 belt resists punctures Open tubular clincher design for superior road feel and cornering