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Adjust the geometry of your bike by changing the head tube angle by 1º with the GeoShift Performance Angle Headset. It allows you to change the head tube angle by -1º to make for a slacker geometry for added stability on fast descents, or by +1º by using the opposite orientation of the headset to make for a steeper geometry for quicker steering with maximum front wheel traction.
Upper assembly features:
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 Lower assembly features: Custom-molded dual-lip seal on the crown race to protect lower bearing in the toughest weather and trail conditions Service and additional parts available