FSA SX Pro Internal MTB Headset

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Standard delivery is normally 2 - 5 working days.

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Headset for use with tapered headtubes with 44mm internal bore Zerostack upper and 1.5 standard lower with 49.65mm internal bore and tapered 1 1/8 inch to 1.5 inch fork steerer.

Features:
  • Upper: 36/ 36 degree ACB (Black seal)
  • Lower: OD 7/32 inch x 20 caged ball bearings
  • For tapered 50mm/ 55mm OD headtube
  • Forged CrMo upper cup and CNC machined lower cup
  • Stack Height: 15.8 + 11.7 = 27.5mm
  • 237g
Upper ZS44/28.6, Lower EC49/40
Occasionally, without notice, manufacturers change product design and/or specifications.