
FSA Orbit C-40 ACB
The FSA Orbit C-40 ACB is an integrated headset with sealed angular contact bearings and 16.3mm stack height, designed for 1-1/8" to 1.5" tapered steerers. It works with carbon or alloy head tubes and suits riders building versatile gravel and mountain bikes.
- 1-1/8" 45/45 ACB upper - 42mm OD
- 1.5" 36/45 ACB lower - 52mm OD
- Compatible with carbon or alloy head tubes
- For 1-1/8" to 1.5" tapered steerers
- 16.3mm stack height
Pre-order — expected in stock September 4, then ships direct to you.
Pairs well with

FSA Orbit C-40 ACB
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