Because it's fast like any competitive road tire, only it features a bead-to-bead Endurant casing, plus Specialized's BlackBelt technology for puncture protection. Meanwhile, the casing smooths your ride and keeps you fresh, while the tread handles responsively over mixed terrain. It also features a slick center tread for low rolling resistance and shoulder sipes for increased surface adaption and grip.

• Casing: 120 TPI
• Bead: Foldable
• Compound: GRIPTON
• Flat Protection: Endurant Casing and BlackBelt
• 700 x 23mm/25mm; psi 115-125; approximate weight 260g
• 700 x 25mm/28mm; psi 85-95; approximate weight 300g
• 700 x 30mm/32mm; psi 75-95; approximate weight 355g