TheBontrager R1 700c Road Tyrefeatures an advanced tread that gives super-low rolling resistance with excellent cornering grip. The unique Aero Wing bead eliminates gap between rim and tyre for aero advantage. Bontrager R1 700c Road Tyre Features Diameter : 700C TPI : 60 TPI Durometer : 60a Bead : Wire Type : Clincher Puncture Protection : Hard-Case Lite Weight : 340g More info