Material 6061 / T6 CNC Machined Top Cover, Upper Cup, Steel Lower Cup, Crown Race
Size 1.5" Head Tube Reduced to 1 - 1/8 " Fork Tube Semi Integrated Headset
Optional Alloy Lower Cup and Crown Race Lower Cups Insert Diameter 56mm
Dimension 1-1/8"x44 / 55x39.8
Acb sealed bearing SK-5D & SK-15
Shis norm ZS44-28.6 / ZS55-39.8
Height 9.5 ± 1mm
Weight 128.7g
Head Parts PHP-012