The FSA Orbit ZS No.57 is an internal headset to suit a tapered steerer.
This is now the most common type of headset, using a zero stack 44mm ID top cup, and a zero stack 56mm ID bottom cup.
These are a good quality headset, that are well sealed and run high quality steel bearings, rather than the stainless steel bearings of the premium level headsets.
- Suits Tapered Steerer (1 1/8"" top and 1.5"" bottom)
- Suits 44mm ID Upper Headtube
- Suits 56mm ID Lower Headtube
- Stack height: 16.9 + 2.9 = 19.8mm
- Weight grams 144 g
- FSA Code FSHS141-2041
- Top SHIS Code ZS44/28.6
- Bottom SHIS Code ZS56/40