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SHIMANO PRO TOP CUP
  • Type: Lightweight carbon headset top cap assembly for bicycles, designed for standard 1-1/8" threadless headset systems.
  • Compatibility: Fits most 1-1/8" (28.6 mm) alloy steerer tubes used on road, gravel, and mountain bikes with threadless headsets.
  • Material: UD carbon fiber top cap with lightweight anodized alloy bolt and alloy star nut.
  • Finish: Premium UD matte carbon finish for a clean and professional cockpit appearance.
  • Weight: Approximately 16 g per complete set, including hardware.
  • Hardware: Includes lightweight alloy bolt and alloy star nut for secure headset preload adjustment.
  • Installation: Simple replacement for existing headset top caps; installs using the included star nut and preload bolt.
  • Design: Precision-engineered Shimano PRO Gap Cap Carbon (PRHS0070) with lightweight construction and seamless integration into modern cockpit setups.
  • Use Case: Ideal for cyclists seeking weight savings, premium aesthetics, and reliable headset preload performance on road, gravel, and MTB builds.

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