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FSA Headset Microspacers

Item #: HS408Z25
USD$7.95 16% off USD$9.49 msrp
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FSA Aluminum Headset Stack Spacers

Item Specifications
Color Silver
Thickness .25 mm
Unit of Sale Bag of 10
Material Aluminum
Steerer Tube 1-1/8" Threadless


by PowerReviews
FSA Headset Microspacers

(based on 4 reviews)

Ratings Distribution

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  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 4 customers

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Magic Little Piece

By fktk

from Brazil

About Me Avid Cyclist

Verified Buyer


  • Lightweight


    Best Uses

      Comments about FSA Headset Microspacers:

      These little spacers made all difference on my headset. I have a cone spacer which the lower edge was rubbering the bearings, stucking the steering. I was not understanding why, because the original spacer looks to have exactly the same shave in the bottom. Even the original, the steering movement was not that perfect. Then, I put 2 of these little fellas and Man, what a difference! the steering movement now is really soft and stiff at same time! Essencial spare part to keep into toolbox!

      • Was this a gift?:
      • No

      Necessary when using Integrated Headsets

      By Scott W

      from Orange, CA

      Verified Reviewer


      • Cannot do without
      • Flat Square Precise


        Best Uses

        • Integrated Headsets

        Comments about FSA Headset Microspacers:

        Necessary for frames that use integrated headsets. Go above the upper bearing to get just enough space above the frame so that the headset top stack does not interfere with the frame. These are high quality. You do not necessarily need to use them with FSA headsets, I personally used with Cane Creek.


        extremely useful

        By Li

        from Maimi, FL

        Verified Buyer

        Comments about FSA Headset Microspacers:

        My fork's steering tube length barely fits my existing stem with a common 10mm spacer, so I got those to make 5mm spacer, super useful.


        problem solver

        By Rob

        from Socorro, NM

        Verified Reviewer

        Comments about FSA Headset Microspacers:

        These are exactly what you think they are. I needed them to resolve a clearance issue with an integrated headset on my Giant XTC Composite.

        The FSA headset top cap would hit the headtube body on the frame. The microspacers allowed me to shim up the headset top cap for clearance, while still keeping the gap as small as possible to prevent dust/dirt/moisture from entering the headset bearings.

        If you need very fine adjustment for your headset, this will do the trick.

        Displaying reviews 1-4

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