FSA GRAVITY Gravity SX Pro Headset

Upper Headtube ID: 44mm (semi integrated)Lower Headtube ID: 54.92mmFor 1.1/8" to 1.5" tapered steerer

• 1.1/8" Upper, 1.5" Lower
• for different OD headtube
• For tapered 50 - 61mm OD headtube
• For tapered fork steerer 1.5" to 1.1/8"
• Upper: Forged alloy shallow cup with 36deg. x 45deg. ACB
• Lower: CNC machined alloy cup with 1.5" 36deg. x 45deg. ACB
• Stack height: 18.7 + 2.4 = 21.1mm
• Weight: 110g

Spares:

• Upper Bearing: 160-6460
• Lower Bearing: 160-6470
• Crown Race: 160-5537