This is the Chris King Seatpost Collar in 31.8mm silver, machined from lightweight aluminum with a stainless steel bolt and hardware that resist corrosion through wet seasons.
It clamps the post on road, gravel, and hardtail frames with even pressure and no creak, and the anodized finish matches King headsets and hubs for builds where the details line up.
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.
