- 1-1/8''/1.5'', 36°/45° ACB
- For tapered 50 mm/62 mm OD head tube
- For 1-1/8'' to 1.5'' tapered fork
- Upper: Forged alloy cup with ACB (blue seal)
- Lower: 1.5'' CNC-machined alloy cup with ACB (black seal)
- Stack height: 16.9 mm + 2.9 mm = 19.8 mm
- Weight: 124.6 g
Attributes
| Bearing Grade | ACB Sealed |
| Crown Race Diameter | 40mm |
| Headset Position | Complete |
| Headset Type | ZeroStack |
| Headset Weight | 125g |
| Lower Cup | 56mm |
| Material | Aluminum |
| Misc | 36°/45° ACB |
| Primary Color | Black |
| S.H.I.S. | ZS44/28.6 | ZS56/40 |
| SHIS Lower | ZS56/40 |
| SHIS Upper | ZS44/28.6 |
| Stack Height | 19.8 |
| Steerer Tube | 1-1/8''-1-1/2'' |
| Upper Cup | 44mm |
