Improve your headset with our 44mm top cup and high-quality Optimiz 41mm and 36°/45° bearings.
UPPER CUP 44MM - LOWER CUP 55MM. UPPER BEARING 41MM EXT 36°/45°-LOWER BEARING 51.8MM EXT 45°/45°.
| Brand | Optimiz |
| Supplier reference | 483379 |
| Color | black |
| Color | Black |