The Durath fortress is 18% lighter than standard racing tires (195 grams in 700×25 size), but also has a layer called Sportx Protection Layer (SPL).
This system guarantees all the advantages of a light and high performance tire, reducing the reduced risk of drips like a heavier version.
The lower rolling resistance and the improved grip are due to the 150 tpi carcass, combined with a new and resistant compound which ensures a long duration.
In addition, its elliptical outline gives optimal aerodynamic properties.
In short, this model is light and fast and lasts longer than comparable tires.