Adjust the geometry of your bike by changing the head tube angle by 1? with the GeoShift Performance Angle Headset. Ultralight Stem Cap With Integrated Spacer plus an aluminum bolt and a star nut 5mm top cover = 6mm total stack 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 150487-01 and 150487-05 made for use in Short Head tubes (90-114mm) 150487-02 or 150487-06 made for use in Long Head tubes (115-140mm) Attributes Angle 1.0° Bearing Grade Sealed cartridge Crown Race Diameter 40mm Headset Position Complete Headset Type ZS, External threadless Headset Weight 107g Lower Cup 49mm Material 6061 Aluminum Primary Color Black S.H.I.S. ZS44/28.6 | EC49/40 SHIS Lower EC49/40 SHIS Upper ZS44/28.6 Stack Height 6 Steerer Tube 1-1/8''-1-1/2'' Upper Cup 44mm
