https://www.ridewill.com/p/en/acros-31002561r1-am-blocklock-headset-zs55-icr-internal-cable-routing/1683874/
Steering Headsets Cycle Headsets
Headsets Cycle Headsets
In stock. Delivery in 24 hours
Shipping costs: 5.90
Expected arrived: 20/05/2025
Semi-integrated headset (ZS) with steerer stop and internal cable routing for bikes with 55mm head tube top and bottom. Our blocklock-zs55-headset protects the top and down tube from contact with the handlebars, stems and fork crown, as well as the wires and cables from excessive stress in the event of a fall. Compatible with all forks with 1.5" (40 mm) lower head tube
- Integrated cable routing
- Double sealed angular contact ball bearings
- Steel ball bearings stainless
- Fiberglass reinforced plastic centering ring with vulcanized seal
- Diameter (ID) 55mm
- Upper bearing internal diameter (ID) 55 mm
- External Diameter (OD) 61 mm
- Head tube (SD) 28.6 mm/1 1/8"
- Bottom Internal Diameter (ID) 55mm
- Bottom outside diameter (OD) 63mm
- Head tube (SD) 39.8mm/1.5"
- Bottom height (H) 6mm
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