The Ultimate Brompton Headset Upgrade
The Chris King Brompton GripNut Threaded Headset represents the pinnacle of headset engineering for Brompton folding bicycles. Since 1976, Chris King has been supplying serious cyclists with the world's best-made and most reliable headsets, and the GripNut brings that legendary quality to Brompton riders. Designed specifically for threaded forks that don't require a cable hanger or additional spacers, this low stack height headset features the patented GripNut collet locking system that stays securely adjusted—eliminating the need for periodic tightening that plagues standard headsets.
Every Chris King headset is built with heat-treated bearings and surgical-grade steel races that are machined simultaneously to ensure perfect matching. Unlike conventional bearings that degrade over time, Chris King bearing tracks actually get smoother as they age and burnish through use. The external upper and lower cups feature the iconic Chris King rounded profile, adding timeless style while delivering buttery-smooth steering that transforms the Brompton riding experience. Engineered, manufactured, and assembled in Portland, Oregon USA.
Legendary Quality and Performance
- Patented GripNut proprietary collet retention system (US Patent 8662517) stays securely adjusted.
- Legendary Chris King made-in-house sealed cartridge bearings with heat-treated construction.
- Surgical-grade steel races machined simultaneously for perfect bearing-to-race matching.
- Bearings actually get smoother with age as tracks burnish through use.
- 7075 T-6 aluminum construction delivers strength without excess weight.
- Low stack height design optimized for threaded forks without cable hangers or spacers.
- Threaded collet locking system firmly clamps threads for superior holding power.
- External upper and lower cups with iconic Chris King rounded profile.
- Fully serviceable design for years upon years of demanding riding.
- 10-year built-to-last warranty covering material and manufacturing defects.
- Available in multiple colors with choice of Bold or Sotto Voce logo finishes.
- Professional installation strongly recommended—requires Chris King headset press adapters.
