Amazon.com: Bike Headset Bearings, Steel Ring Wheel Bearings Steering Stem Bearings Single Repair Accessory Steel Ring Bike Headset (41mm) : Sports & Outdoors
Headset - Tange/IRD NeedL BlastR – Rivendell Bicycle Works
Sur-ron Tapered Roller Bearing Headset for Light Bee and Light Bee X - Emotoer
There are roller bearings inside my headset! No questions, I've just never seen them before. Anyone want to guess the vintage? : r/bikewrench
Stronglight bicycle headsets - South Salem Cycleworks