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Full speed ahead DX Pro ZS44/28.6|EC49/40 Headset
Aluminum construction. For tapered 50mm/57mm head tube. 1-1/8 alloy internal cup with 36�/45� ACB sealed bearing upper. 1.5 alloy external cup with 36�/45� ACB sealed 1.5 bearing lower. 141g
- TECH SPECS
| SHIS | ZS44/28.6|EC49/40 |
| Color | Black |
| Weight | 141g |
| Steered OD | 28.6 |
| Cup (mm) | 44/50 |
| Race (mm) | 40 |
| Stack Height | 30.3 |
| Bearing Angle | - |
| Size | 1-1/8 to 1.5` |