FSA Orbit IS Carbon headset

The Orbit IS features Cane Creek-compatible IS41 36°/ 45° angular contact bearingsand a 15mm carbon top cover. Compatible with frames having a 1 1/8" head tube/fork steerer and a head tube inner diameter of 41mm (example: Bianchi Super Pista & Pista Concept).   Integrated bearings fit directly into compatible head tubes without the need of a bearing press. Specifications • 1-1/8'' integrated • 36°/ 45° angular contact bearings • carbon top cover w/ alloy top cap & steel starnut assembly • stack height: 16mm • weight: 83g