The Bontrager R3 Hard Case Lite 700c Road Tyre. Diving into corners. Hammering climbs. City-line sprints. Speed is your thing, and you need tyres that can handle those demands. The R3 boasts 120TPI casing for supple handling and great rolling resistance. Bontrager R3 Hard Case Lite 700c Road Tyre Features Low rolling resistance with excellent cornering grip Unique Aero Wing bead eliminates gap between rim and tyre for aero advantage Hard-Case Lite protects against punctures with superior, lightweight, sub-tread material