Description
Promax PI-1 Alloy Sealed Bearing 1″ Press in Headset Black. The PI-1 Alloy 4545 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.
- TECH SPECS
| Color | Black |
| Lower Stack Height | 5.6 |
| Bearing Type | 45/45 Degree ACB |
| Crown Race | 26 |
| Weight | 120 |
| Defined Color | Black |
| Upper Stack Height | 8.2 |
| S.H.I.S Upper | EC30 |
| S.H.I.S. Stem Clamp Diameter | 25.4 Threadless |
| S.H.I.S Lower | EC30 |







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