Chris King ZS49 Inset Upper Headset w/ Bearing 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. In Set is the classic, unbeatable Chris King sealed bearing headset built into six configurations for contemporary bicycle headtube dimensions. As a low-stack style headset, the press-in cups and bearings are housed within the headtube allowing for an overall lower ride height. Features Includes 49mm Inset with bearing Engineered, manufactured and assembled in Portland, Oregon USALifetime warranty Legendary made-in-house bearings Designed specifically for a 49mm upper headtube Color: Black | Chris King | Zs49 Upper Headset Bearing | Black | Zs49