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Gravity By FSA SX Pro Zerostack Internal Headset

Gravity By FSA SX Pro Zerostack Internal Headset

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Product Description

Hardcore headset for extreme riders! For use with tapered zerostack headtube and tapered 1 1/8 inch to 1.5 inch fork steerer.

  • Internal headset for tapered head tube and 1 1/8 to 1.5 inch tapered fork
  • Upper: 36/ 45 degree ACB (Blue seal)
  • Lower: 1.5 inch 36/45 degree ACB (Black seal)
  • For tapered 50mm/61mm OD headtube
  • Forged alloy upper cup with CNC machined alloy lower cup
  • Stack Height: 18.8 + 2.4 = 21.2mm
  • Weight: 110.2g
Upper ZS44/28.6, Lower ZS55/40Spares:
  • Upper Bearing: 160-6460
  • Lower Bearing: 160-6470
  • Crown Race: H6078

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