Brand x headset 44iiss loose ballthe brand x 44iiss headset has an internal zero stack 44mm upper cup and an internal zero stack 44mm lower cup for use with a 1 18 straight steerer it uses loose ball bearings and has been designed to offer superior reliability quality and performance at an exceptional price point featuresall steel loose ball bearings with sealsheight 98 1mmmaterial steel shis norm zs44286 zs4430 includes top cap and star nut buy brand x components from ch