"The Brand-X 44IISS Headset has an Internal (Zero Stack) 44mm Upper Cup and an Internal (Zero Stack) 44mm Lower Cup for use with a 1-1/8” Straight Steerer. It uses loose ball bearings and has been designed to offer superior reliability, quality and performance at an exceptional price point.
All Steel Loose Ball bearings with seals
Height: 9.8 ± 1mm
SHIS Norm: ZS44/28.6 | ZS44 / 30
Includes: Top cap and Star Nut