Conquer ice, conquer snow, conquer winter riding! Commuting to work or school on ice just got faster and easier with 45NRTH's Xerxes. 140 steel-carbide studs provide unrivaled control and durability, while the ultra-narrow profile easily slices through snow to provide extreme traction in every winter condition. FEATURES: 140 lightweight aluminum carbide studs Tight center treads for fast rolling Ultra-narrow profile cuts through deep snow and slush SPECS: Tire Diameter: 700c Labeled Width: 700 x 30c ISO Diameter: 622 / road / 29" Bead: Wire