Chris King ZS49 Headset Bearing Cap You are looking at a Chris King Bearing Cap for the ZS49 Inset Headset. Chris King designed the first sealed bearing headset in 1976. Thirty-four years later, the King headset remains a benchmark for quality. No other bicycle component can claim the precision, performance and absolute reliability of a Chris King headset. At Chris King Precision Components, they manufacture each headset in their own facility to exacting standards, using quality-at-the-source methods to minimize waste. Even the sealed, cartridge style bearings are made in-house and are hand-checked. Features10-year warranty Compatible with Chris King ZS49 Inset Headset only | Chris King | Zs49 Headset Bearing Cap | Black | Zs49