The S2 headset has been engineered for the riders that are toughest on bikes. The perfect addition to your latest bike build.Utilising fully sealed angular contact bearings with nylon retainers, these headsets are built to last.Angular contact bearings have higher load tolerances, which when in a headset, offer unparalleled performance.With 8 separate lower and 4 separate upper push in options, most frame options are covered.