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FSA Gravity DX ZS Headset 11/8"

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Product Description

 Gravity DX ZS Headset 11/8 

Upper Headtube ID: 44mm (semi integrated)

Lower Headtube ID: 49.57mm (1.5")

For 1.1/8" steerer

  • 1.1/8" 36°/45° ACB Upper
  • Caged ball bearing lower
  • For 1.5" headtube and 1.1/8" steerer
  • For tapered 50/57mm OD headtube
  • Forged alloy upper cup & CrMo lower cup
  • Upper: 36°/45° ACB (blue seal)
  • Lower Ø7/32" × caged ball bearing
  • Stack height: 16.9 + 11.7 = 28.6mm
  • 150g
  • Colour Black
  • Lower 49.6mm
  • Product Category Headsets / Internal-External
  • Steerer 1.1/8"
  • Upper 44.0mm

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Headsets Guide

What are headsets?

Your bike’s headset is the pivot point between the fork and frame – it’s essentially a set of bearings that allows the fork to turn freely when you move the handlebars.

Who needs a headset?

Although you can sometimes just replace the bearings in your headset when they wear out, sometimes it can be cheaper and more economical to just replace the whole headset.

What are the choices?

Older-style bike have a traditional quill headset, which grips an L-shaped stem that slots or threads straight into the steerer tube. Most modern bikes have an aheadset, though, which the stem sits on top of and clamps the steerer tube. Headsets can be external, integrated or internal, depending on how the bearings fit around or inside the frame’s head tube. You will need to get the right sort to fit your frame.

What should I buy with them?

Headsets usually need a bit of quality bike grease when you fit them, so don’t forget to buy it. They also need expensive headset pressing tools, so it might be best to get your local bike mechanic to fit your new headset.

Anything else?

Under no circumstances should you try to fit a new headset without the right tools. You could cause damage that writes off your valuable bike frame.

Delivery & Guarantee

UK Delivery Information

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.

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