Vredestein fortezza senso xtreme weather tub tyre the fortezza senso xtreme is a handmade tubular ideal for cold and wet conditions vredesteins newly developed aws compound ensures low rolling resistance and outstanding grip in wet and cold weather a curve control system guarantees durability and an exceptional ride quality even in corners an anti puncture system of thick weave polyamide embedded in the highly flexible casing ensures an excellent level of puncture resistance and durability