FSA DX Pro Internal MTB Headset

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What are the delivery costs?

We offer Free UK Delivery on all orders.

Including: Channel Islands, Isle of Man, Isle of Wight, Northern Ireland, Scottish Highlands and Scottish Islands.

Standard delivery is normally 2 - 5 working days.

International delivery costs and delivery times vary for different countries. Please see here for more information.

Christmas delivery

For guaranteed Christmas delivery please order bikes before 11am, Tuesday 20th December and all other items before 11am, Wednesday 21st December. Guaranteed Christmas delivery applies to all items with the icon, please choose your option/size to see if the specific item you are after qualifies for Christmas delivery.

Headset for use in headtube with 1.5 inch lower (49.65mm internal bore) and 1 1/8 inch internal (Zerostack 44mm internal bore) upper. For use with tapered 1.5 to 1 1/8 inch fork steerer.

  • 1 1/8 inch, 36 degree/ 45 degree ACB-Upper

  • 1.5 inch, 36 degree/ 45 degree ACB- Lower

  • For tapered 50mm /57mm OD headtube

  • For tapered fork steerer 1.5 to 1 1/8 inch

  • Forged alloy deep upper and lower cup

  • Stack Height 16.9 + 13.4 = 30.3mm

  • Weight: 139gUpper cup assembly: ZS44/28.6, Lower cup assembly: EC49.65/40