FSA Orbit UF Threadless Headset

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Upper 1.1/8Ó retainer bearings. Lower 36¡_36¡ ACB bearing. 1.1/8Ó steerer. Alloy top cover. Upper and lower water seals. Upper: ¯5/32Ó_20 retainer bearings. Lower: Angular Contact Bearing (black seal). Stack Height: 15.3 + 13.4 = 28.7mm Weight: 101g Spares: Bottom bearing: TH872 (160-0016000000) Crown Race: 160-5471 Show more