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The Specialized Concave Alloy Top Cap w/ Star Nut Assembly is a lightweight top cap and star nut for bicycles with an alloy fork steerer tube. This assembly features a concave alloy top cap, an anodized alloy bolt, and a star nut for an 1 1/8" alloy fork steerer tube.
Note: Using a star nut on a carbon fiber steerer may cause damage or failure.
This product was added to our catalog on August 5, 2024