Following up on the 2012 SU1 was not going to be easy, but it has pushed us to focus on every detail and make the United Supreme SU1 2013 our best yet. All 20″ bikes in the Supreme line have brand new 4 pawl fully sealed bearing cassette hubs that sound amazing and have taken some serious abuse in testing. 2.25″ United Swerve tyres in the front and rear, improved more responsive frame geometry, a sealed female bolt front hub, larger 8.5″ x 28.5″ bars, new flangeless grips and finer details such as a slim sunken fork top cap all decorated with colours inspired by our pro team.