This is the Chris King DropSet 5, an integrated headset for 42mm upper and 52mm lower bearing seats at 45 degrees. The stainless steel bearings are made in Oregon, stay round under load, and carry King’s lifetime warranty.
It fits most modern integrated road and gravel frames and replaces the no-name bearings that arrive rough from the factory. For riders who want King bearings without the flagship price, this is the entry.
Chris King Precision Components has machined bicycle components in Portland, Oregon since 1976, making its own bearings from domestic-mill materials and anodizing parts in-house.
