# Promax PI-1 Alloy Sealed Bearing 1" Press in Headset Black

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
    
    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

## Details

- **Price:** 54.99 USD
- **Vendor:** Gio's Outdoors
- **Type:** Headsets
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 54.99 USD | In stock |

## Images

- Promax PI-1 Alloy Sealed Bearing 1" Press in Headset Black

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/promax-pi-1-alloy-sealed-bearing-1-press-in-headset-black)
> Updated: 2026-07-22