FSA Compressor plug

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FSA Compressor plugs are proper complete top assemblies for carbon steerers to replace the traditional top cap/star nut assembly. Includes integrated cap, bolt, and expander. The 1 1/8" size fits carbon steerer tubes with an inner diameter of 21mm to 26mm, and 1" fits most 1" threadless carbon forks. ⓘ If you have a 1 1/8" carbon fork and the inner diameter is smaller than 21mm, use the 1" version. Specifications • 1" or 1 1/8" • includes alloy top cap, bolt and expander Show more