- Designed to bridge the gap between the 40-series and the 110-series
- Internally countroured and relieved to minimize weight and maximize strength
- Low-friction upper bearing seal completely seals cup from contaminants and is fully captured by the top cover with no loose parts
- Dual-seal crown race provides excellent seal efficiency with low friction
- Carbon friendly captured compression ring
- Premium, sealed stainless-steel Hellbender bearings
- Interlok spacer cmpatible
- Bright – dip anodized
Attributes
| Bearing Grade | Sealed cartridge |
| Crown Race Diameter | 40mm |
| Headset Position | Complete |
| Headset Type | Integrated |
| Lower Cup | 52mm |
| Material | 6061-T6 Aluminum |
| Primary Color | Black |
| SHIS Lower | IS52/40 |
| Stack Height | 10 |
| Steerer Tube | 1-1/8”-1-1/2” |
