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

 Drop-In ACB Bearings/ Integrated / IS Type Headset

For 1-1/8" - 1.5" Tapered Steerer / Headtube

Upper Fit: IS42/28.6

Lower Fit: IS52/40

Upper Headtube ID: 42mm

Lower Headtube ID: 52mm

Includes Top Cap (TH-874), Top Cone (15mm Alloy), Star Nut & Crown Race

Stack Height: 16.2mm

Approx 108g - Inc. Top Cap

ACB Bearings 

Brand New, Original FSA Replacement Part

  Brand New In Box