FSA Orbit CF-40 ACB Diff OD Headtube 1.1/8 - 1.5 (9mm)

• Differential headtube, 45°×45° ACB upper industrial bearing lower (for carbon fibre headtube)
• For differential OD headtube
• Upper Angular Contact Bearings, Lower Industrial bearing
• Stainless crown race
• Carbon top cover
• Stack height: 9.4 + 0.9 = 10.3mm

Spares:

• Top bearing: TH870 (160-1647)
• Bottom bearing: TH073 (160-6761)
• Crown race: H6083 (160-5536)