File:Bicycle headset (threadless) exploded view-en.png - Wikipedia
Help! What order do these headset bearings go in? : r/bikewrench
Buy Trek Headset Spares - Knock Block 58-Degree Headset Assembly with Display Chi - Black 28.6 mm (1-1/8") - Crown Race ID=39.8 mm - Stack Height=8.7 mm