Intergrated headset system. Angle contact seal bearing. Strong and smooth.Product Features:．Material: Top cover Alloy 6061-T6
．Spec: Integrated 1-1/8” Upper / 1-1/8” Bottom
(UP) Ø28.6 x Ø41.8 / (DOWN) Ø28.6 x Ø41.8
．Bearing: Ø41.8 x 45° x 8
．Weight: 85g/set
