The Ritchey zero stack headset is designed for 1.5”
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Details :
- 1.5” fork pivot compatible
- Lower Fit (S.H.I.S.): ZS55/40
- Référence : 33055337012
Size :
- Inlet diameter: 55mm
- Overall outside diameter: 61mm
- Outside diameter bearing: 51.9mm
- 45 ° x 45 ° bearing
- Stainless interchangeable cartridge bearing
- Bearing with Titanium-coated anti-oxidation treatment
MORE INFORMATION
| SHIS Bottom | ZS55/40 |
| Frame Bottom Diameter | 55 |
| Steerer Bottom Diameter | 40 (1.5”) |
| Lower Cup | Zero Stack |







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