Tufo 650cx19 C Jet Special Tubular-Clincher Tire (Black) Provides the ride quality and rolling resistance of a tubular tire but mounts to a regular clincher rim. Activated silica tread compound for extra precise handling characteristics. Puncture resistant ply. Inflates to 8-12 bar (115-175 p.s.i.) 120 T.P.I. / 295g