The Gravity 4 headset is dedicated to tapered forks. It fits 1.5" head tube and 1-1/8" to 1.5" tapered steerers. Equipped with an lower angular contact bearing and a upper caged ball bearing. According to the bearings the Gravity 4 uses special aligned bearing cups. The lower semi-integrated cup consists of cnc machined steel. The upper cup with a classically ahead shape is made of forged chromoly-steel. Inclusive steel-cone. Suited for head tubes with 55mm outer diameter and 49.57 mm inner diameter. Finish: black anodized with laser etched logos.
The FSA configurator
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