The PI-1 Alloy 45×45 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, 45×45 angular-contact sealed bearings.

 

Because this versatile headset has 45×45 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.

 

- Weight: 124 g

- Upper Stack Height: 8.2 mm

- Lower Stack Height: 4.2 mm

- Crown Race: 30

- S.H.I.S Lower: EC34

- S.H.I.S Upper: EC34

- S.H.I.S. Stem Clamp Diameter: 28.6 Threadless