Brand x headset 44iess sealedthe brand x 44iess headset has an internal zero stack 44mm upper cup and an external 44mm lower cup for use with a 1 18 straight steerer it uses sealed angular contact bearings and has been designed to offer superior reliability quality and performance at an exceptional price point featuresangular contact sealed bearingsheight 202 1mmmaterial cnc forged and machined 6061 alloyshis norm zs44286 ec4430includes top cap and star nutbuy brand x compo