The Brand-X 34EESS Headset has an External 34mm Upper Cup and an External 34mm Lower Cup for use with a threaded 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: 37.5 ± 0.5mm
Size: 1 1/8”
SHIS Norm: EC34/28.6 | EC34 / 30