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)