New high density casing - a true 320 tpi - delivers unbeatable comfort and superior performance with inflation pressure of up to 145psiNew PRB 2.0 puncture resistant belting placed underneath the tread increases the flat prevention properties of the Corsa Evo CX up to 40%, even while reducing the weightThe new Corsa Evo CX 2 is tougher and faster than ever before210 grams, 23mm