Tufo 700x21 S33 Pro Tubular Tire (Black) Go to amazon.com Related posts Thing need consider when find bicycle tubular tyre? FeatureFine tread pattern contributes to low rolling resistance and good ride quality.Puncture resistant ply.Inflates to 8-12 bar (115-175 p.s.i.)60 T.P.I.260g DescriptionTraining tubular for use with high inflation pressure.