- 40-Series Represents the Perfect Balance of Performance, Durability and Value
- Internally Contoured 6061-T6 Aluminum Cups and Cover
- Innovative Clip-Seal Seals the Top Assembly and Captures the Compression Ring
- Interlok Spacer Compatible
- Sealed Black Oxide Steel Cartridge Bearing
- Consistent Stack Heights Across 10, 40 and 110-Series
- Internal Parts Are Cross-Compatible Across 10, 40 and 110-Series
Attributes
| Bearing Grade | Sealed cartridge |
| Crown Race Diameter | 40mm |
| Headset Position | Complete |
| Headset Type | ZeroStack |
| Headset Weight | 97g |
| Lower Cup | 49mm |
| Primary Color | Black |
| S.H.I.S. | ZS44/28.6/H8 | EC49/40 |
| SHIS Lower | EC49/40 |
| SHIS Upper | ZS44/28.6 |
| Stack Height | 20 |
| Steerer Tube | 1-1/8''-1-1/2'' |
| Upper Cup | 44mm |
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