# Seismic - Fullspin™ Precision-Profiled XT™ Steel Bearing Spacers (Pack of 4)

**Fullspin™ Precision-Profiled XT™ Steel Bearing Spacers  
**_Premium 0.400-inch steel bearing spacers.  
Fit standard 8mm axles only.  
_

Fullspin’s unique Precision-Profiled XT (Extra-Tough) Steel Bearing Spacers have broad flanged ends that square up against Classic (non-Built-In) inner ring surfaces _with up to 67% more contact area_ – powering _unprecedented Classic alignment precision and stability.  
_

Design levels and steadies all working components of seated bearings far more precisely and stably than Classic spacers from other brands – which are typically rough-cut from thin-walled, easily-bent iron or aluminum, with oversized bores that rock on axles.

This is hands-down _the most advanced Classic bearing alignment tech ever seen in the skate world_, and it unleashes _truly exceptional paired performance_. Synergizes with working features in all high-quality Classic bearings**\*** to maintain exceptionally consistent wheel contact and grip; support extremely predictable slide performance; and noticeably extend both wheel and bearing life.

Precision-machined from premium bearing steel with advanced heat-treatment for unmatched strength and toughness.

Spacer width set to extra-strict 0.400-inch tolerance, to support highly accurate positioning of paired bearings inside finer wheels with well-engineered hubs.

Radius reduced to bare minimum on spacer edges, for fuller contact and more stable alignment at bearing interfaces. Bore specs dialed to maintain exceptional straightness on finer axles.

**\*** For best results, use with Seismic® Fullspin Classic bearings, which have extra-wide inner ring contact surfaces that exactly match the profiled spacer ends.

## Details

- **Price:** 88.0 HKD
- **Vendor:** Seismic
- **Type:** Accessories
- **Tags:** Bearing Spacers, Seismic

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 88.00 HKD | In stock |

## Images

- Seismic - Fullspin™ Precision-Profiled XT™ Steel Bearing Spacers (Pack of 4)

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> Source: [SBDW Longboards Hong Kong](https://sbdwlongboards.com/products/seismic-tekton-precision-profiled-xt-steel-spacers-pack-of-4-copy)
> Updated: 2026-04-20