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FSA Compressor Expander Plug and Top Cap

Item #: HS257Y00
Availability Please make a selection
Quantity   Out of stock.
FSA Compression Plugs are top assemblies for carbon steerers. Replaces the traditional top cap assembly. Includes cap, bolt, and expander.

    * Top assembly for carbon steerers replaces traditional top cap and star nut assembly
    * Compressor Carbon Pro has carbon fiber top cap
    * Includes cap, bolt and expander

REVIEW SNAPSHOT®

by PowerReviews
FSA Compressor Expander Plug and Top Cap
 
4.0

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

80%

of respondents would recommend this to a friend.

Pros

  • Well built / quality (3)

Cons

No Cons

Best Uses

No Best Uses

Reviewed by 5 customers

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Displaying reviews 1-5

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5.0

A star-nut alternative that works!

By NWS@MTBR

from Duthie Hill

About Me Avid Cyclist

Verified Buyer

Pros

  • It Just Works
  • Never Goes Off-axis
  • Quality Construction

Cons

  • Install Took Three Tries

Best Uses

    Comments about FSA Compressor Expander Plug and Top Cap:

    I hate star nuts, so I have tried a couple of alternatives. The others did not grip the steerer tube securely enough, so I couldn't get the headset tight enough, so I went back to star nuts.

    But I decided to give this one a shot before giving up on the idea completely. It works just as well a star nut. And there's no star nut to go off-axis, or to interfere with cutting the steerer tube, or to get pushed down too far by accident, etc.

    The only drawback is that it took some tinkering to find the sweet spot where it slides in but yet it grips the steerer just enough that you can tighten it. If too loose, it just spins when you try to snug it up.

    • Was this a gift?:
    • No
     
    3.0

    Nice option.

    By Skip

    from Maui

    About Me Avid Cyclist

    Verified Buyer

    Pros

    • Allows Easy Fork Install
    • Quality Construction

    Cons

    • Can Slip A Bit

    Best Uses

    • Road Biking

    Comments about FSA Compressor Expander Plug and Top Cap:

    As mentioned above when installing a fork the expanded plug can slip in the steerer tube. Degrease and try again if it does. Mine worked well after. Instructions do specify for road use only and so far so good on my commutor.

    • Was this a gift?:
    • No

    (3 of 3 customers found this review helpful)

     
    5.0

    An Advance Over Star Nuts

    By JD Of NSC

    from Boston, MA

    Verified Reviewer

    Pros

    • Easy To Install
    • Easy to remove

    Cons

    • Star Nuts Are Free

    Best Uses

    • Any 1 18 Fork

    Comments about FSA Compressor Expander Plug and Top Cap:

    The FSA compression plug is so more elegant than a star nut as you can remove it easily should you want to recut your steerer tube. This permits you you to cut the tube a little long at first to experiment so you know the exact length you need. Also, if you upgrade the fork you can remove it and re-use it. Anyone who has trouble installing this plug is out of their league for doing fork installations, it is simple but you need some mechanical aptitude. Getting it snug enough was easier if you use the T-handle type of allen wrench but not essential. I use these even on alloy steer tubes because they are removable and easy to install.

    (1 of 1 customers found this review helpful)

     
    4.0

    Strong Neck

    By DH Adam

    from Little Mountain QLD

    Verified Reviewer

    Pros

    • Easy to take out
    • No movement
    • Strong

    Cons

    • Not Visually Pretty
    • Plain Boring

    Best Uses

    • Downnhill

    Comments about FSA Compressor Expander Plug and Top Cap:

    The FSA headset is a great product with not movement and tough design, it is easy to take out and clean and then put back in. The only problem so to say is that it has no style, it looks boring and plain.

    (1 of 4 customers found this review helpful)

     
    3.0

    Wish they included some instructions.

    By Joey

    from San Francisco, CA

    Verified Reviewer

    Pros

      Cons

      • Lack of instruction

      Best Uses

      • Road bike fork

      Comments about FSA Compressor Expander Plug and Top Cap:

      FSA does not include instructions nor are they available on their site so it took a bit of searching online and taking the thing apart to figure out the basic of it. It's actually 2 parts in one. The compressor part with it's own bolt and the top cap.

      I'm still unable to get tight enough to bind the fork so I'm unsure how much preload you can actually get on this.

      If FSA would just put instructions online with as far as installation depth of the compressor and torque ratings that would help a lot.

      Displaying reviews 1-5

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      Free Shipping Offer

      Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

      Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.