FSA Orbit No.42 ACB C40 Integrated Headset, Tapered, IS42/28.6 Upper IS52/40 Low

Drop-In ACB Bearings/ Integrated / IS Type Headset. ACB Bearings. FSA Headset. For 1-1/8" - 1.5" Tapered Steerer / Headtube. Upper Fit: IS42/28.6. Upper Headtube ID: 42mm.

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