Adjust the geometry of your bike by changing the head tube angle by 2? with the GeoShift Performance Angle Headset. Ultralight Stem Cap With Integrated Spacer plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Optional shim washers if needed Custom-molded dual-lip seal on the crown race to protect lower bearing in the toughest weather and trail conditions Attributes Angle 2.0° Bearing Grade Black Oxide Headset Position Complete Headset Type External, Threadless Headset Weight 107g Lower Cup 49mm Material 6061 Aluminum Primary Color Black S.H.I.S. EC44/28.6 | EC49/40 SHIS Lower EC49/40 SHIS Upper EC44/28.6 Stack Height 15.9 Steerer Tube 1-1/8''-1-1/2'' Upper Cup 44mm
