Vittoria Corsa G+ Competition Speed 700x23c Tire Tubeless ReadyThe Vittoria Corsa Copetition Speed G+ Foldable tire is part of the top of the line series featuring Graphene and the new ITS Technology. The ITS or Intelligent Tire System consists of changing densities as you ride in various situations. For example, when you are rolling straight, the rubber hardens so you can roll faster and is less likely to be punctured or pinched. When you brake, accelerate, or corner the compound becomes softer so you can have more traction and control. This tire is tubeless ready and is the lightest tubeless tire available! 700x23c in size.8022530005470