The Specialized Roubaix Armadillo Elite Tyre. New for 2007 the Roubaix Armadillo Elite is one of the perfect tyre for those long fast rides where comfort and reliability cannot be sacrificed. The newest and lightest addition to the Armadillo Elite series of tyres is joined by the unique 23/25 Roubaix casing designed to provide the rider with a tyre that is fast, compliant and virtually flat proof. The best part of this is that you get all of this without compromising ride quality and adding just 35grams to a lightweight and race ready tyre. 120 TPI casing with 60/70 dual compound Dual Radius tread design. DRT design for low rolling resistance and great cornering is complemented by the secure fixation provided by the Aramid bead.