Promax PI-1 Press In BMX Headset 1 1/8″ Black

The Alloy Promax PI-1 Press In BMX Headset has an aluminum top cap, upper bearing cover, lower race, and upper and lower cups. All-aluminum construction results in a lightweight headset. Each headset is fitted with super-smooth rolling, precision, 4545 angular-contact sealed bearings.

Because this versatile headset has 4545 angular-contact bearings, you can use the included cups and install it in standard frames. Or, leave the cup in the box, and use it as an Integrated headset

Specifications

• Crown Race: 30mm
• S.H.I.S. Stem Clamp Diameter:28.6 Threadless
• Bearing Type: 45/45 Degree ACB
• S.H.I.S Lower: EC34
• S.H.I.S Upper: EC34
• Lower Stack Height: 4.2mm
• Weight: 124g (1 1/8″)
• Upper Stack Height: 8.2mm