FSA No.57 E2 Tapered Steerer Headset with Reducer Cown Race

FSA No.57 E2 Tapered Steerer Headset with Reducer Cown Race
Steerer outer diameter: 28.6mm (1-1/8") / 38.1mm (1-1/2")
Fits Straight 1-1/8" Fork Steerer Tube with included Reducer Crown Race
or Fits Tapered Fork Steerer Tube using your existing 1.5" crown race (1.5" crown race is not included)
Crown race inner diameter: 28.6mm
Cup Insertion OD: Not applicable
Stack height: 7mm
Bearing type: Sealed
Headset type upper: Unthreaded semi-integrated
Headset type lower: Semi-integrated
Includes Upper 1-1/8" and 1.5" Lower Bearings and all items shown in attached photo.
For use as replacement headset for Trek Part # W299174
FSA part # ZS44/28.6 | ZS56/30